Thesaurus

harmless

adjective

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Synonyms & Antonyms of harmless

not causing or being capable of causing injury or hurt

a perfectly harmless little spider

Synonyms for harmless

anodyne,
benign,
hurtless,
innocent,
innocuous,
inoffensive,
safe,
white

Words Related to harmless

healthful,
healthy,
salubrious,
wholesome

benignant

sound,
trustworthy

gentle,
gracious,
mild

nonthreatening,
painless,
unobjectionable

noncorrosive,
nondestructive,
nonfatal,
noninfectious,
nonlethal,
nonpoisonous,
nonpolluting,
nontoxic,
nonvenomous

Near Antonyms for harmless

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 for harmless

adverse,
bad,
baleful,
baneful,
damaging,
dangerous,
deleterious,
detrimental,
evil,
harmful,
hurtful,
ill,
injurious,
mischievous,
nocuous,
noxious,
pernicious,
prejudicial,
wicked

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Cite this Entry

“Harmless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmless. Accessed 13 Jun. 2021.

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Thesaurus

harmless

Synonyms & Antonyms of harmless

Learn More about harmless