Words that mean "crazy"

crazy adj "affected by a psychiatric disorder."
synonyms and idioms:

• Around the bend (An old navel term for anyone who is mad.)
  
• Bananas (became faddish during the late 1960s)
  
• Bats
• Bats in one's belfry
  
• Batty
• Berserk
  
• Big bottle of crazy sauce
  
• Bonkers (meant 'drunk' in earlier British Slang)
  
• Certifiable
  
• Cracked
  
• Crackers
  
• Crackpot
  
• Crazed
  
• Cuckoo
  
• Daffy
  
• Daft
  
• Demented
  
• Deranged
• Erratic
  
• Flip out
  
• Flip your wig
  
• Freak out
  
• Insane
  
• Headcase
  
• Go ape
  
• Go bejesus
  
• Go postal
  
• Kooky
  
• Loco
  
• Loony
  
• Loopy
  
• Lost his/her gourd
  
• Lost his/her marbles
  
• Lunatic
  
• Mad
  
• Mad as cheese
  
• Maniac
  
• Mental
  
• Not all there
  
• Nut case
  
• Nut job
  
• Nuts
  
• Nutty
  
• Nutty as a fruit cake
  
• Off his/her rocker
  
• Off the deep end
  
• Off the wall
  
• Out of his/her gourd
  
• Out of his/her mind
  
• Over the edge
• Possessed
  
• Psycho
  
• Screw loose
  
• Screwy
  
• Touched
  
• Two cans short of a six pack
  
• Unbalanced
  
• Unglued
  
• Unhinged
• Wack job
  
• Wacked
  
• Wacky
  
• Wacko
  
• Wigged out
• Wingnut
  

References