whacky Synonyms

goofy zany around the bend barmy bats bonkers crackers dotty fruity haywire kookie kooky loopy nuts round the bend wacky silly daft cracked loco loony buggy batty nutty balmy cockamamy cockamamie dumb as a box of rocks feather-brained unreasonable gaga not right in the head off one's head out to lunch screwy one sandwich short of a picnic bughouse away with the fairies sappy ridiculous moonstruck mild mental insane cuckoo crazy meshuga crackpot sausage short of a fry-up