Synonyms of harmless

harmless

adjective

as in benign

not causing or being capable of causing injury or hurt

a perfectly harmless little spider

Synonyms & Similar Words

• benign
• safe
• innocent
• innocuous
• inoffensive
• healthy
• white
• anodyne
• sound
• mild
• gentle
• benignant
• healthful
• hurtless
• wholesome
• salubrious
• trustworthy
• gracious
• unobjectionable
• nonthreatening
• nontoxic
• nonpoisonous
• painless
• nondestructive
• noninfectious
• noncorrosive
• nonfatal
• nonlethal
• nonpolluting
• nonvenomous

Antonyms & Near Antonyms

• dangerous
• harmful
• bad
• adverse
• detrimental
• evil
• injurious
• deleterious
• damaging
• prejudicial
• poisonous
• noxious
• mischievous
• ill
• pernicious
• wicked
• hurtful
• baneful
• hazardous
• baleful
• venomous
• threatening
• sinister
• menacing
• ominous
• unsafe
• risky
• nocuous
• perilous
• unhealthy
• unsound
• painful
• unwholesome
• nasty
• fatal
• offensive
• deadly
• unhealthful
• lethal
• destructive
• malignant
• ruinous
• noxious
• insidious
• scathing
• parlous
• noisome
• polluted
• imperilling
• imperiling
• jeopardizing
• tainted
• wounding
• pestilent

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• dangerous
• harmful
• bad
• adverse
• detrimental
• evil
• injurious
• deleterious
• damaging
• prejudicial
• poisonous
• noxious
• mischievous
• ill
• pernicious
• wicked
• hurtful
• baneful
• hazardous
• baleful
• venomous
• threatening
• sinister
• menacing
• ominous
• unsafe
• risky
• nocuous
• perilous
• unhealthy
• unsound
• painful
• unwholesome
• nasty
• fatal
• offensive
• deadly
• unhealthful
• lethal
• destructive
• malignant
• ruinous
• noxious
• insidious
• scathing
• parlous
• noisome
• polluted
• imperilling
• imperiling
• jeopardizing
• tainted
• wounding
• pestilent

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