Meaning & use
crazy
Mentally unstable, or wildly impractical, foolish, or extreme, used informally.
See it in a sentence
It would be crazy to drive through the storm without checking the forecast first.
The kids went crazy with excitement when the ice cream truck arrived.
A note on using this word
Crazy is very informal and, when applied to mental illness, can be considered insensitive; 'wild', 'unbelievable', or clinical terms are often better choices.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
sanesensible
Make it your own
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