"so dense he never understands anything I say to him"
"never met anyone quite so dim"
"although dull at classical learning, at mathematics he was uncommonly quick"
"dumb officials make some really dumb decisions"
"he was either normally stupid or being deliberately obtuse"
"worked with the slow students"
"struck dumb"
"speechless with shock"
"dumb animals"
Its thunder made the cataracts dumb.
出自:ShelleyThe streets are dumb with snow.
出自:TennysonHaving to translate his work into dumbed-down metaphors for the shiny-shoe set.
出自:P. Bronsondumb的详细讲解:词语用法adj.(形容词)dumb作“哑的”解时无比较等级。词义辨析adj.(形容词)