/ Dictionary / Index H harmless: Meaning and Definition of Find definitions for: harm•less Pronunciation: (härm'lis), [key] — adj. without the power or desire to do harm; innocuous: He looks mean but he's harmless; a harmless Halloween prank. without injury; unhurt; unharmed. to relieve from responsibility or liability for any damage or loss. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: harmless (Thesaurus) harmful Harmonia Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language