/ Dictionary / Index N ninny: Meaning and Definition of Find definitions for: nin•ny Pronunciation: (nin'ē), [key] — pl. -nies. a fool or simpleton. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ninny (Thesaurus) ninjutsu ninnyhammer Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language