Synonyms for

Crazy

Verb / ˈkreɪzi: / Another word for crazy — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

mentally deranged, especially as manifested in a wild or aggressive way

Synonyms & similar words

unbalanced demented wild dotty halfbaked looney nutcase brainsick disturbed gaga screwball loony softheaded mad weirdo unhinged sick insane mad nuts wacky bonkers deranged demented eccentric unhinged psychotic maniacal frenzied frantic wild hysterical illogical ridiculous absurd foolish senseless

Synonyms by register

Formal

insane mentally ill deranged unbalanced

Informal

nuts bonkers bonkers loopy bonkers

Literary

mad unhinged beserk

Antonyms

sane rational sensible balanced stable lucid sober

Common collocations

  • crazy idea
  • crazy person
  • crazy about
  • crazy expensive
  • driving me crazy
  • crazy good
  • crazy fast

Word family

noun craziness
verb crazify
adjective crazy
adverb crazily

Usage note

The word 'crazy' is often used informally to describe something extreme or unusual, not just mental instability. Using it to describe mental illness can be considered insensitive.

Example sentences

  1. The man was acting crazy and shouting at people on the street.
  2. She had a crazy idea to build a house out of ice cubes.
  3. The rollercoaster ride was so crazy that I screamed the whole time.
  4. It's crazy to go swimming in the middle of winter.
  5. The cat went crazy when it saw the laser pointer.

Quotes

  • I'm not crazy. My reality is just different than yours. - Lewis Carroll
  • I'm crazy, but I'm not stupid. - Jackie Chan
  • I'm crazy and I don't pretend to be anything else. - Rihanna

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