crack-brained Synonyms

screwy ill-advised unbalanced stupid silly nutty nonsensical non compos mentis mindless barmy bats out to lunch dippy half-baked crackpot potty nuts dotty bonkers mental mad lunatic daft cuckoo crazy cracked brainless batty balmy asinine demented deranged loony irrational insane inane idiotic foolish foolhardy dumb absurd