Synonyms for Crazy

Synonyms starting with letter F

• foolish

  asinine, ridiculous, idiotic
• fatuous

  ridiculous, unrealistic, idiotic
• fantastic

  peculiar, foolish, strange
• frantic
• foolhardy

  ridiculous, idiotic, unrealistic
• fanatical

  infatuated, very enthusiastic
• fruitcake

  lunatic, looney
• farcical

  absurd
• fool

  stupid, silly
• fruity

  mentally strange, sane
• funny

  weird
• flaky

  mentally strange
• fervent

  concern
• freaky
• furious
• frenzied
• fanatic

  drug addict, person
• freak

  nuts
• frenetic
• fanciful
• freakish
• far-out
• flighty
• frivolous
• fond
• feeble-minded
• fiend

  drug addict
• fantastical
• freaked out

  mentally strange
• funky
• flipped out

  mentally strange
• fallacious
• feverish
• far-fetched
• feebleminded
• featherbrained
• fuming
• flipped

  mentally strange
• flake
• flimsy