ridiculous Antonyms

funny as a crutch well-advised wise viable staid sound solemn sober shrewd sharp serious sensible sapient sane knowledgeable no-nonsense down-to-earth as funny as a crutch of sound mind well-founded unhumorous uncomic sobersided unsmiling in one's right mind insightful enlightened compos mentis commonsensical all there sagacious right-minded reasonable discerning deserving conjecturable clever clear-headed canny brainy believable balanced attainable astute acute achievable earnest genius grave reasoned