Breadcrumb Home > Dictionary > Index M motionless: Meaning and Definition of Find definitions for: mo•tion•less Pronunciation: (mō'shun-lis), [key] — adj. without motion: a motionless statue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: motionless (Thesaurus) motion motion picture ✖ Related Content Daily Word Quiz: ultimathule Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language