Meanings
Prefix
1. un-; non-; negative prefix
Alt. forms
Pitch accent
Top 31100
Used in vocabulary (417 in total)
indisposition; sickness
wonderful; marvelous; strange; strangely enough; oddly enough; for some reason
misfortune; bad luck; ill luck; ill fortune
unclear; obscure; unknown; unidentified; ignorance; lack of wisdom
silence
perennial youth
of uncertain meaning; ambiguous; cryptic; nonsensical; incomprehensible; perplexing
pout; displeasure; ill humor; ill humour; sullenness
displeasure; discomfort; unpleasantness; indisposition; ailment
lawless; outrageous; insolent; rude; inexcusable; unpardonable
immorality; injustice; adultery; infidelity; (arch.) murdering one's teacher or a government official
immovable; motionless; firm; Acala (Wisdom King); Fudō; fierce Buddhist deity
dissatisfaction; discontent; displeasure; complaint; unhappiness
ominous; sinister; unlucky; inauspicious
unhappiness; misfortune; ill luck
indiscrete; imprudent; unscrupulous
slowness; inertness; inability; lack of talent; dullness
constant; persistent; indecisiveness; usual; normal
unpleasant; disagreeable; displeasing; uncomfortable; unhappy
disadvantage; handicap; unfavorable position
impossible; incapable (of doing); incompetence; inability; impotence; having no solution (of an equation)
distrust; mistrust; insincerity; impiety; faithlessness
not serious; frivolous; insincere; unsteady
daring; fearless; intrepid; bold; tough
irregular; unseasonable; changeable; unsettled; abnormal
impossible
injustice; unfairness; wrongdoing; iniquity; impropriety; irregularity
inconvenient; inexpedient; unfavourable; wrong; improper; objectionable
discrepancy; discord; disagreement; mismatch; dissonance
nonviolence; non-harming; ahimsa
unhappiness; sorrow; misfortune; death (usu. of a relative); bereavement
unnatural; artificial; affected; strained
insufficiency; deficiency; shortage; dissatisfaction; discontent; complaint
instability; insecurity; crankiness
wrong; bad; not allowed; not possible; failing grade
imperfect; incomplete; faulty; defective
unprepared; careless; imprudent; indiscreet
unfairness; injustice; partiality
imbalance; disproportion; disparity; mismatch; asymmetry
unreliable; uncertain; indefinite; unclear
real estate
not asking (about); letting go unquestioned; disregarding; ignoring; overlooking
unfaithfulness; infidelity; unchastity
eternal; everlasting; unchangeable; invariant
unsuitable; inappropriate; improper
economic slump; hard times; poor (business); dull; gloomy; cheerless
poor crop; bad harvest; crop failure; low quality (e.g. of literary works)
unlawful; illegal; unreasonable; outrageous; unjust
(treasuring something by) never taking (it) off the premises
irreversible
not permitting; not authorizing
past forty; following right course
absence; nonattendance; nonappearance
unwritten; illiterate; uneducated; poor writing
unlearned; uneducated
sudden; abrupt; unexpected; unforeseen
unnecessary; unneeded
bad; poor; inferior; delinquent; hoodlum; hooligan
absence; disregard; indifference
discomfort; inconvenience; poverty; want; inability; disability
immortality; eternal life; undeath; undead
inconvenience; inexpediency; unhandiness
dissatisfaction; discontent; disapproval; objection; complaint; protest
reluctant; unwilling; involuntary; unintentional; unintended; unlooked-for
discomfort
invisibility
barren; sterile; infertile; unproductive (e.g. discussion); fruitless
disrespect; irreverence; impiety; blasphemy; profanity
injustice; impropriety; unreasonableness; undeserved; unfair; invalid
poor; pitiful; piteous; pitiable
irregularity; unsteadiness; disorderly
bad condition; not to work out (i.e. a deal); disagreement; break-off; disorder; slump
discontent; dissatisfaction; complaint; grievance
wholeheartedly; with heart and soul; intently; with undivided attention; with intense concentration; single-mindedly
inexperienced; unfamiliar (with); unversed; lacking experience
absurd; irrational; unreasonable; absurdity (philosophy)
insufficient; inadequate; imperfect
unshapely; ill-formed; misshapen; awkward; clumsy
unnecessary; needless
disadvantage; handicap; drawback; inadvisability; inexpediency; loss
impure; adulterated; foul; mixed; dishonest
dishonor; dishonour; disgrace; shame
flaw; defect; problem; inconvenient
carelessness; inattention; thoughtlessness
insecurity; carelessness
poor health; ill health; unhealthy
dimness; obscurity; indistinctness; unclear; unintelligible
(examination) failure; rejection; disqualification
truancy; school non-attendance
omission; failure; incompleteness; irregularity; mismanagement; misconduct
clumsiness; awkwardness; ineptitude
unfit; unsuitable; unmarketable
insincerity; dishonesty; untruthfulness; bad faith
irrational; illogical; unreasonable; absurd; inconsistent
morbid; unhealthful; insalubrious
friction; discord; trouble; dissension; disagreement
discord; (on) bad terms (with)
abstention; nonparticipation
uncertain; indefinite
incorrect; wrong; incorrect interpretation (answer, solution)
unbecoming; improper; unsuitable; ill-matched; unworthy of
non-conforming process; noncompliant; incompatible
bad job; poor workmanship; bungle
undefeated; unbeatable; invincible
weak point; unskillfulness
opaque; obscure; opacity; obscurity; unclear; unpredictable
inferior goods; defective product; defective goods
uneven; irregular; non-uniform; unsorted; odd; miscellaneous
uneven; irregular; non-uniform; unsorted; odd; miscellaneous
one's weak point
inequality; unfairness
discord; dissonance; cacophony; discord (in a relationship); disagreement; disharmony
misfire
bad reputation; disgrace; unpopularity
unsuited; inappropriate; improper; undeserved
lack of virtue; immorality; vice; depravity; unworthiness
indeterminate form; undefined; indefinite; unstructured
dishonesty; injustice; dishonor; dishonour; ingratitude
abstention; nonintervention; noninterference
uncertainty; insecurity; inconstancy; indefinite; undecided
perfidiousness; faithlessness; inconstancy; insincerity; falsehood
uncertain; unreliable; inauthentic; insecure
irregular; indeterminate; tramp (steamer)
blur; blurred; indistinct
unpopular
undutifulness to one's parents; lack of filial piety
undutifulness to one's parents; lack of filial piety
unsanitary condition; lack of hygienic care; inattention to hygiene; unhygienic conditions
disqualification; unfitness; noncompliance
disqualification; unfitness; noncompliance
partial; incomplete; imperfect
immorality; iniquity; impropriety
idleness; lack of application; lazy study habits
unkindness; unfriendliness
inadequacy; inappropriateness; unfitness; impropriety
atomic; indivisibility
displeasure; ill humour; ill humor; pique
disused; unused; useless; wasteful; of no use
disloyalty; infidelity
incomplete combustion; imperfect combustion; being off one's game; not doing one's best; being unable to use all of one's strength
determination; conviction
win by default
deformity; distortion; disability; word written at the end of a letter
neglect of one's health; unhealthy living; intemperance
sleepless vigil; night watch; vigilance
suspension; interruption; stoppage; tie-up; cessation
loss by default; default
rejection (of an application)
nonprosecution; nonindictment
ignorance; inexperience; unfamiliarity
uncertainty; inaccuracy; incorrectness
impiety; unbelief; infidelity
improper; inappropriate; unjust; unfair; unreasonable
sexual frigidity; insensitivity; indifference
disharmony; discord; dissonance; incongruity
dissatisfaction; discontent; displeasure
imbalance; lack of balance; lopsidedness; disproportion; inequality; disparity
I'll write again soon (closure for a letter, etc.); more anon; sincerely yours; yours truly
war renunciation; anti-war; bout cancelled due to absence of one of the wrestlers
dissent; disagreement; disapproval; objection; refusal
failure; poor result; disfavour; disfavor; unpopularity
discontinuity
silence
nightless gay quarters; nightless city
failure; rejection; rupture
unkindness; inhumanity; heartlessness
contrary to one's wishes; gone awry; gone amiss; short of money; in financial difficulty
incurability
being unknown; not knowing; ignorance; foolishness
indiscretion; imprudence
rare; extraordinary; unparalleled; unparallelled
disapproval; disagreement
inconsistency; mismatch; nonconformity; unconformity
disused article
vague; ambiguous; noncommittal; off-point
inaccurate; indistinct; imprecise; unclear; indecisive
dishonouring (a bill); dishonoring; bouncing (a cheque, check); non-payment
failure; abortive (attempt, action)
irregularity
dissent; disagreement; disapproval; objection; refusal
poor economy; waste
distaste; unsavoriness; unsavouriness
shame; disgrace
shame; disgrace
thoughtless; indiscreet; lacking in common sense; rashness; betraying one's lack of judgment (judgement); absurd
insubordination; disobedience
ugly (of a person); plain; unattractive; (arch.) lacking ability; (arch.) incompetent
emergency; unexpectedness
obscure; vague
disgraceful; inauspicious; ill-omened; ominous; scandalous
default; nonperformance
impossibility
lack of uniformity; unevenness; imbalance; inequality; disproportion
injustice; unfairness
inconsistent; illogical; unconvincing; not thorough; indefinite; half-way
unchastity; misconduct; dissipation; fornication
unspecified; random; indefinite
involuntary
noninvolvement; nonintervention; neutrality
misconduct; misbehaviour; impropriety; profligacy
disadvantageous; harmful; unprofitable
unauthorized use; misuse
plain woman
destabilization; destabilisation
dishonesty; untruthfulness
disunity; disharmony
non-confidence; lack of confidence
uneasiness; uncertainty; anxiety; apprehension; restlessness; insecurity
intolerance
bad form or manners; indecency; impropriety
difference; diversity; irregularity; disorder
constancy; immutable
point of dissatisfaction; complaint; gripe; issue
irresolution; indecision; vacillation
inequality (expression)
disagreement; disapproval; objection; dissent; non-consent
uncertainty; indeterminacy; unreliability; unauthenticity
neglect of health; intemperance
not knowing
poor catch (fishing)
lack of faith; unbelief; impiety; infidelity
unproductive; unfruitful
indifference; lack of enthusiasm; inattentiveness
degradation; downfall
neither arising nor ceasing
indigestion
inseparability
inactivation
disuse; not using; non-usage
lack of uniformity; unevenness; inequality; heterogeneous; nonuniform
evil; sin; vice; mischief
unsuccessful candidate; rejected person
pending; unsettled; undecided
discontented element; discontented (grumbling) member
lack of talent; incompetency
indisposition; emperor's illness; unhappiness
heartlessness; inhumanity
inequality; disparity
invariance
uncertainty principle
non-woven fabric
(Goedel's) incompleteness theorem
poor result; bad record; failure
neutral; noncommittal
dull; slow; sluggish; inactive; inanimate; quiet
immorality; dishonesty
unbeliever
unwise plan; bad policy; inexpediency
involuntary muscles
irregularity; unevenness; asymmetry; lack of uniformity
less-than sign or greater-than sign (< or >); inequality sign
non-support; disapproval (e.g. in an opinion poll)
forbearance; omission; nonfeasance; inaction
nonconductor
small attendance; poor house
improper; inappropriate; illegitimate; unacceptable; unfair
fasting
ahimsa; abstinence from taking life; principle of non-violence in Jainism, Buddhism, Hinduism, etc.
unfitness; incompetency
indiscretion; bad idea; thoughtlessness; indiscreetness
distrust; discredit
bad reputation; disgrace; unpopularity
unsaturated
unprofitability
dissonance; discord
unequal sides
dishonorable discharge; dishonourable discharge
bad manners; rudeness
police questioning (of a suspicious person)
aplastic anemia; aplastic anaemia
not carrying (driver's license, passport, etc.); not having on one's person; nonpossession
advaitam (non-duality)
inactivity
impartiality; neutrality; fairness
intemperance; excesses
person unfit for society; misfit
divorce; unrealized marriage (prospects); unrealised marriage
insincerity; dishonesty; untruthfulness; bad faith
nothing increases or decreases (because all things are void)
disloyalty; unfaithfulness
irregular; undisciplined; disorganized; disorganised; slipshod
misconduct; misbehaviour; impropriety; profligacy
disloyalty; unfaithfulness
vagrant; transient lifestyle
anxiety neurosis; aporio-neurosis
non-existence; absence; lack
refractory
invisible ray
disapproval; rejection
Very sincerely yours; (arch.) different
Very sincerely yours; (arch.) different
ne bis in idem; prohibition against double jeopardy
discordance; discrepancy (e.g. statistical); conflict; incongruity; inconsistency; mismatch
nonarrival; nondelivery
gloominess; gloom; questionable; unfair; underhand
unearned
faithlessness; insincerity
unreasonableness; absurdity; irrationality
lawlessness; violation of customs
Amoghasiddhi; Infallible Magic (a dhyani-Buddha)
impiety; irreverence
having no fixed days off; having no regular closing days; having no regular holidays
in no hurry; nonessential (industry)
imprudence; indiscretion
nonrestraint
unskillfulness
uncommon; outstanding
nonexpansion; localization; localisation; nonaggravation
inconvenience; hard living
insincerity; unfaithfulness
immunity from arrest (i.e. of Diet members or foreign diplomats); diplomatic immunity; parliamentary immunity; legislative immunity
unstable state; metastable state; quasistable state
sterilization
failure; poor results
indefinite integral
disapproval rating
scalene (triangle); triangle having three sides of different lengths; inequilateral triangle
scalene (triangle); triangle having three sides of different lengths; inequilateral triangle
sense of uncertainty; lack of clarity; indecisiveness
irreversible change
premenstrual dysphoric disorder; PMDD
all talk, no action
clumsiness; unskillfulness
disapproval; dissent; veto
misconduct; profligacy; licentiousness
space without columns
constant; invariable
stubborn and ignorant
unsaturated fatty acid
non-retroactivity
not enrolling for compulsory schooling
unexpected; accidental
irregular verb
uncountable
poor bag (hunting)
nonaggression
dissident element (e.g. in a political party); discontented element
dishonest person
incomplete metamorphosis; hemimetabolism
indeclinable
intolerance (to food, drug, etc.)
inaction; lethargy
asymmetry
irregularity
dissent; disagreement; disapproval; objection; refusal
I'll write again soon; more anon; sincerely yours; yours truly
close relationship
failure; unpopularity
non-drying oil
nuclear nonproliferation
agreement used to prevent unauthorized or faked divorce by couples in Japan in the future
unlawful trespass; occupying a property and refusing to leave
Buddhist precept prohibiting the consumption of alcohol
celibacy; chastity
nonvolatile component; nonvolatile constituent
non-volatility
of uneven quality; heterogenous
clumsy; bungling
indefinite article
insulator; nonconductor; poor conductor
uncountable noun
unqualified (incompetent) person; square peg in a round hole
not applicable; na
inapparent infection; subclinical infection
unsaturated hydrocarbon
infertility (esp. of animals)
concealment (e.g. of facts); nondisclosure
unavailable choice
nonfarming land; untilled land
veto; rejection
poor preparation; poor arrangements
irregular forces; guerrillas
negative reaction; unsuccessful vaccination
nonparticipation
nonassimilation
indivisibility
indistinct; obscure
abstract number
nonnegotiable
the principle of not resuming debate on an item in the same Diet session in which it has been voted down
crime of omission
not granted
principle holding that any matters left unresolved at the end of one Diet session are not to be carried over to the next
underemployment
imperfect competition
linkage disequilibrium
incomplete intransitive verb
heterogeneity
nonexecutable statement
unscheduled task
unpaired electron
unsaturated compound
infertility (esp. of plants)
unequal cleavage (embryology)
unsolicited promotion
real estate insurance
histoincompatibility
no-show (at hotel)
tax-exempt rice field (ritsuryo system)
statically indeterminate structure; redundant structure; statically indeterminate construction
Three Noes (former Taiwan policy of no contact, no negotiation and no compromise with China)
unreasonable; irrational; illogical
inhuman; immoral; unreasonable; barbarity (one of the eight unpardonable crimes, incl. killing three people in one family, or dismembering a corpse)