Synonyms and Antonyms of harmless
not causing or being capable of causing injury or hurt <a perfectly harmless little spider> Synonyms anodyne, benign, hurtless, innocent, innocuous, inoffensive, safe, white Related Words healthful, healthy, salubrious, wholesome; benignant; sound, trustworthy; gentle, gracious, mild; nonthreatening, painless, unobjectionable; noncorrosive, nondestructive, nonfatal, noninfectious, nonlethal, nonpoisonous, nonpolluting, nontoxic, nonvenomous Near Antonyms poisonous, venomous; menacing, ominous, sinister, threatening; hazardous, imperiling (or imperilling), jeopardizing, parlous, perilous, risky, unsafe, unsound; nasty, noisome, unhealthful, unhealthy, unwholesome; offensive, painful, scathing, wounding; deadly, fatal, lethal, ruinous; destructive, insidious, malignant, noxious, pestilent, polluted, tainted Antonyms adverse, bad, baleful, baneful, damaging, dangerous, deleterious, detrimental, evil, harmful, hurtful, ill, injurious, mischievous, nocuous, noxious, pernicious, prejudicial, wicked
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