/ Dictionary / Index M meaningless: Meaning and Definition of Find definitions for: mean•ing•less Pronunciation: (mē'ning-lis), [key] — adj. without meaning, significance, purpose, or value; purposeless; insignificant: a meaningless reply; a meaningless existence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: meaningless (Thesaurus) meaningful relationship mean latitude Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language