101 stupid synonyms include unintelligent, ignorant, dense, brainless, mindless, foolish, dull-witted, dull, slow-witted, and witless. Stupid is an adjective, and its antonyms are intelligent, clever, astute, sensible, and prudent. Here are some additional synonyms for "stupid" with example sentences.
101 other ways to say stupid.
He's acting really stupid today.
It's a stupid, pointless argument.
Stop making stupid mistakes, please.
That was a stupid idea.