loony Synonyms

wacky crazy nuts batty loopy nutty bonkers weirdo crackpot barmy maniac madman mad lunatic whacky nutcase round the bend kooky kookie haywire dotty crackers bats fruity insane deranged daft buggy cracked balmy cuckoo psychotic loco potty gonzo unhinged schizoid schizo scatterbrained off-the-wall schizophrenic screwy looney softheaded mentally unstable madwoman harebrained fruitcake paranoiac nutsy