rapid increase; proliferation; surge; explosion
swiftly; rapidly; suddenly; abruptly; sharply (of a slope, bend, etc.); steeply
hurrying (to somewhere); rushing; hastening; express (train)
sudden; abrupt; rapid; sharp; drastic; radical
vital part (of the body); tender spot; key point; essential point; male crotch (as a target in fighting)
urgent; pressing; immediate; urgently; promptly; at once
hurriedly; in a hurry; in haste; (arch.) sudden
sudden drop; sharp fall; nosedive; swoop
sudden turn; sudden change; (suddenly occurring) accident; emergency
sudden rise; steep climb; zoom; trending
hasty; rash; rushed; hurried; impatient; impetuous
sudden brake; coming to a sudden stop
urgency; exigency; emergency
fast approach; quick intimacy
rapid development; rapid unfolding
hastily made; improvised preparation
emergency; crisis; imminent danger; Vulnerable (conservation status); VU
urgent report; urgent message
urgent; requiring quick (response)
sharp turn; tight turn; steep turn
(coming to a) sudden stop
sudden change; sudden turn
van (of a movement); vanguard; forefront
emergency case; person that has suddenly taken ill
sudden drop; precipitous slope
bursting through the surface; suddenly surfacing; sudden increase (e.g. in public interest); fast rise (e.g. in rank)
express dispatch; urgent correspondence
semi-express train; local express train; sub-express train
abrupt turn; sudden change
artistic modulations in traditional Japanese performances; opening, middle and climax (end)
boom (development, sales, etc.)
in no hurry; nonessential (industry)
sudden or unexpected disaster
imminent danger; impending hardship
urgent message; urgent dispatch; urgent despatch
steep sloping land; steep terrain
swiftly running river; rapid stream
emergency braking procedure (e.g. during driver training and testing)
high fan speed (setting on air conditioner); squall; sudden gust