/ Dictionary / Index N noneffective: Meaning and Definition of Find definitions for: non•ef•fec•tive Pronunciation: (non"i-fek'tiv), [key] — adj. not effective. not fit for duty or active service, as a soldier or sailor. —n. a noneffective person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. none nonempty Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language