Some people are too stupid to realize what's bad for them. She was really foolish to quit her job like that. It was silly of you to go out in. Inflections of ' crazy ' (n): Wordreference english thesaurus © 2024. Demented, dotty, gaga, mad, unbalanced, brainsick, daft, bonkers, bananas, cracked; Sane, rational, hate, dislike, rational, sane,. Webwhat's the definition of crazy in thesaurus? Most related words/phrases with sentence examples define crazy meaning and usage. Websynonyms for crazy in free thesaurus. Strange, odd, bizarre, fantastic, silly, weird, ridiculous, outrageous, peculiar…