stupidity stupidish • stupidly · · · Info · Definitions · Synonyms · Antonyms · Characters · · stupidity · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a poor ability to understand or to profit from experience. · · Noun Definition 1 (noun) a stupid mistake. Synonyms: betise, folly, foolishness, imbecility. · · Noun Definition 2 Synonyms · · · betise · · Synonym 1 folly · · Synonym 2 foolishness · · Synonym 3 imbecility · · Synonym 4 Antonyms · · · intelligence · · Antonym 0 Characters · · d latin small letter d U+0064 i latin small letter i U+0069 p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079