The meaning of crazy is not mentally sound There are 17 meanings listed in oed's entry for the adjective crazy, two of which are labelled obsolete, and one of which is considered offensive Marked by thought or action that lacks reason
Crazy Diamond - JoJo's Bizarre Encyclopedia | JoJo Wiki
How to use crazy in a sentence.
One who is or appears to be mentally deranged
To them she is not a brusque crazy, but 'appropriately passionate' (mary mcgrory). When she gets on the motorcycle she goes crazy Quotations he went crazy when he won. Use the adjective crazy to describe actions that aren't sensible, like the crazy way your brothers run around the house when their favorite team wins a game
Crazy can also mean insane, though in today's world, it is offensive to apply it to those who struggle with mental illness. If you describe someone or something as crazy, you think they are very foolish or strange. Caused by or arising from mental derangement Marked by or manifesting insanity
From the gnu version of the collaborative international dictionary of english.
See examples of crazy used in a sentence.