A2adjectiveinformal1K

Crazy

UK /["/ˈkreɪzi/"]/US /["/ˈkreɪzi/"]/

Definition

not sensible; stupid

In simple words: Very strange or unusual; not normal.

Examples

  • She has a crazy idea about how to solve the problem.
  • The amusement park is filled with crazy rides that thrill everyone.
  • He goes crazy when his favorite team loses a game.
  • That movie was so crazy I couldn't stop laughing!
  • Sometimes, I think my cat acts crazy when she runs around the house.

Usage notes

Used in informal contexts to describe something that is surprising, wild, or insane. Avoid in formal writings or professional settings.

Grammar pattern

standalone adjective

Memory hint

Think of a 'crazy' person wearing mismatched clothes and acting in an unexpected way.

Collocations

  • be
  • seem
  • sound
  • really
  • absolutely
  • completely
  • with
  • be
  • go
  • drive somebody
  • absolutely
  • completely
  • at
  • be
  • seem
  • sound
  • really
  • absolutely
  • completely
  • with

Synonyms

  • insane
  • wild
  • mad
  • absurd
  • eccentric

Antonyms

  • calm
  • sane
  • normal

Common mistakes

  • 'Crazy' should not be used to describe mental health issues as it's considered insensitive.
  • Learners often confuse 'crazy' with 'wild' when they mean 'uncontrolled'.
  • Sometimes used as a noun ('the crazy'), which is incorrect.