thickheaded; insensitive; dull; thick-skinned
stupidity; silliness; asininity; imbecility; dim-wittedness
thickheaded; slow-witted; phlegmatic; slow (of one's movements); sluggish
dark gray; dark grey; donjiki (clerical dress)
dull; slow; stupid; dull-brained
becoming dull; slowing down
slow; clumsy; stupid; irritating
ordinary train; slow train
becoming dull (of a knife, one's wits, etc.); becoming blunt
becoming numb; becoming desensitized
stupidity; dull person; dullness
sharp or blunt; bright or foolish
dull-witted; stupid; foolish
silk damask; satin damask
obtuse (of the shape of a leaf); rounded
luck, steadfastness and patience (the three keys to achieving success)
dark sleeper (species of sleeper goby, Odontobutis obscura)