HarmlessH'ARMLESS, adjective Not hurtful or injurious; innoxious. Ceremonies are harmless in themselves.1. Unhurt; undamaged; uninjured; as, to give bond to save another harmless2. Innocent; not guilty.Who is holy, harmless undefiled, separate from sinners. [[Hebrews 7#26|Hebrews 7:26]].