Crackbrain
Synonyms for Crackbrain
- nut
- crackpot
- loony
- loon
- weirdo
- nutcase
- kook
- madman
- screwball
- crank
- maniac
- psycho
- crazy
- lunatic
- ding-a-ling
- fruitcake
- flake
- nutterBritish slang
- oddball
- wacko
- sicko
- sickie
- psychopath
- head case
- eccentric
- codger
- cuckoo
- zany
- original
- phrenetic
For more similar words, try Crackbrain on Thesaurus.plus dictionary