nutty Antonyms

able to think clearly tactical strategic staid stable sound sober smart shrewd sharp sensible sapient sane valid wise awfully clever as wise as solomon as sharp as a needle of sound mind in one's right mind insightful enlightened compos mentis commonsensical all there knowledgeable well-advised sagacious resemblance reasonable educated discerning coherent clever clear-headed circumspect canny brilliant bright brainy balanced astute genius good rational prudential prudent politic perspicacious percipient