The definition of rash is something done or said too fast.
(Informal) Stupid; moronic
Having the ability to discern or judge what is true, right, or lasting; sagacious:
Find another word for unwisest. In this page you can discover 4 synonyms, antonyms, idiomatic expressions, and related words for unwisest, like: stupidest, rashest, dumbest and wisest.