Home › Words › N › ninnyninny/ˈnɪni/ninny means A silly or foolish person.ninny is pronounced /ˈnɪni/.EtymologyUnknown; the synonym ninnyhammer appears around the same time. Possibly related to innocent or Italian ninno (“small child”).nounA silly or foolish person.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.ninnyhammer 90% match — A foolish person; a simpleton. vs ninny →nonny 76% match — A fool. vs ninny →noddy 74% match — A silly or stupid person; a fool, an idiot. vs ninny →ninnyism 73% match — predisposition to act like a ninny vs ninny →nincompoop 72% match — A foolish or silly person. vs ninny →numskull 70% match — A dunce, mentally dull or stupid person. vs ninny →nisey 70% match — A simpleton. vs ninny →niddicock 69% match — A foolish person. vs ninny →