WordReference Random House Learner's Dictionary of American English © 2026
harm•less /ˈhɑrmlɪs/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- without the power or desire to do harm;
innocuous:a harmless prank.
harm•less
(härm′lis),USA pronunciation adj.
harm′less•ly, adv.
harm′less•ness, n.
- without the power or desire to do harm;
innocuous:He looks mean but he's harmless; a harmless Halloween prank. - without injury;
unhurt;
unharmed. - Lawmaking hold harmless, to relieve from responsibility or liability for any damage or loss. Also, save harmless.
- Middle English. See harm, -less 1250–1300
harm′less•ness, n.
- 1. inoffensive, mild, innocent, unobjectionable, benign.
'harmlessly' also found in these entries (note: many are not synonyms or translations):