nitwit nitty • Nitzschia · · · Info · Definitions · Synonyms · Characters · · nitwit · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a stupid incompetent person. Synonyms: dimwit, half-wit, doofus. · · Noun Definition 1 Synonyms · · · dimwit · · Synonym 1 half-wit · · Synonym 2 doofus · · Synonym 3 Characters · · i latin small letter i U+0069 n latin small letter n U+006E t latin small letter t U+0074 w latin small letter w U+0077