/ Dictionary / Index M mindless: Meaning and Definition of Find definitions for: mind•less Pronunciation: (mīnd'lis), [key] — adj. without intelligence; senseless: a mindless creature. unmindful or heedless: mindless of all dangers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mindless (Thesaurus) mind games Mindoro Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language