crazy

[krey-zee] / ˈkreɪ zi /

ADJECTIVE

mentally strange

Synonyms

STRONGEST

insane kooky mad nuts nutty silly wacky

STRONG

ape berserk cuckoo lunatic potty psycho screwball

WEAK

barmy bats in the belfry batty bonkers cracked crazed daft delirious demented deranged dingy dippy erratic flaky flipped flipped-out freaked-out fruity idiotic mad as a March hare mad as a hatter maniacal mental moonstruck nutty as fruitcake of unsound mind out of one's mind out of one's tree out to lunch round the bend screw loose screwy touched unbalanced unglued unhinged unzipped

Antonyms

STRONGEST

balanced calm collected rational reasonable sane sound

WEAK

realistic responsible sensible

ADJECTIVE

unrealistic, fantastic

Synonyms

STRONGEST

absurd bizarre foolish goofy insane irresponsible ludicrous odd outrageous preposterous ridiculous silly strange weird

STRONG

eccentric loony wild

WEAK

balmy beyond all reason cockeyed derisory fatuous foolhardy half-baked harebrained idiotic ill-conceived impracticable imprudent inane inappropriate nonsensical out of all reason peculiar puerile quixotic senseless short-sighted unworkable

Antonyms

STRONGEST

logical normal rational reasonable sensible usual

WEAK

balanced believeable realistic responsible sane

ADJECTIVE

infatuated, in love

Synonyms

STRONGEST

hysterical mad passionate

STRONG

eager keen wild

WEAK

ardent beside oneself devoted enamored fanatical smitten zealous

Antonyms

STRONGEST

unenthusiastic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

What if the crazy paranoid fringe was in fact the vanguard?”

From Salon • May 26, 2026

But even if it isn’t crazy, that isn’t to say things will stay this way forever.

From The Wall Street Journal • May 26, 2026

I invested $12 million in the company for a 12% level of ownership, which people thought was a crazy high price.

From The Wall Street Journal • May 23, 2026

"If you want to win, you've got to run like crazy, lean backwards and stay on your feet," he advises.

From BBC • May 22, 2026

“Even though I’m not supposed to discuss it with anyone. You’ll probably think I’m crazy, anyhow.”

From "Found" by Margaret Peterson Haddix

crazy

Example Sentences

Related Words