Of or like an ass; esp., having qualities regarded as characteristic of asses; stupid, silly, obstinate, etc.
The definition of crazy is someone or something that is insane or not mentally sound.
Intellectually weak or obtuse; stupid.
Conspicuously unintelligent; stupid:
Without good sense; silly; unwise
Not sane; mentally ill or deranged; demented; mad
Not using one's mind; showing little or no intelligence or intellect; senseless or thoughtless
Having no real point or purpose; nonsensical; meaningless
Easy to understand, do, or carry out:
Slow to learn or understand; obtuse.
Having or showing a lack or deficiency of intelligence
The definition of fatuous is foolish or silly.
Displaying a complete lack of forethought and good sense
(of especially persons) lacking sense or understanding or judgment
Find another word for witless. In this page you can discover 30 synonyms, antonyms, idiomatic expressions, and related words for witless, like: asinine, crazy, dull, dumb, foolish, inane, insane, mad, mindless, senseless and silly.