loony Synonyms

nuts nutcase nutty wacky whacky barmy round the bend bonkers crackers dotty fruity haywire kookie kooky loopy weirdo loco balmy batty buggy cracked daft bats crazy psychotic crackpot psycho gaga bananas harebrained madwoman screwball wacko looney unhinged kook erotomaniac screwy cuckoo crazed demented deranged foolish insane lunatic mad madman maniac mental nonsensical