harmless
Poses no threat
Harmless means causing no harm or injury.
A harmless prank is playful, not damaging.
A harmless snake poses no danger.
The word often minimizes: It was just a bit of harmless fun.
Something rendered harmless has been neutralized as a threat.
Harmless can also suggest ineffectual or insignificant—a harmless old fool is too weak to matter.
Causing no harm
- nontoxicNot harmful if consumed
- nonpoisonousIncapable of causing toxicity
- nonvenomousProducing no poison
- nonhazardousPosing no risk
nonlethal · nonirritating · hypoallergenic · noncorrosive · nonpolluting · noninvasive · nondestructive · unthreatening
Having no teeth
- impotentLacking power or efficacy
- ineffectualFailing to achieve purpose
- powerlessLacking strength or authority
- futileIncapable of producing results
weak · inconsequential · trivial · insignificant · negligible · inoffensive · defanged · declawed
Protected from harm
- protectedKept from harm
- risk-freeHaving no downside
- unthreateningNot likely to harm
- shieldedProtected from harm
guarded · foolproof · reliable · trustworthy · dependable · childproof · tested · vetted
innocuous
Causing no harm
- nontoxicNot harmful if consumed
- nonpoisonousIncapable of causing toxicity
- nonvenomousProducing no poison
nonhazardous · nonlethal · nonirritating · hypoallergenic · noncorrosive · nonpolluting · noninvasive · nondestructive · unthreatening · anodyne
toothless
Having no teeth
- impotentLacking power or efficacy
- ineffectualFailing to achieve purpose
- powerlessLacking strength or authority
futile · weak · inconsequential · trivial · insignificant · negligible · inoffensive · defanged · declawed · neutered
secure
Protected from harm
- protectedKept from harm
- risk-freeHaving no downside
- unthreateningNot likely to harm
shielded · guarded · foolproof · reliable · trustworthy · dependable · childproof · tested · vetted · approved
mild
Moderate in intensity
soothing · light · meek · docile · tame · subdued · featherlike · silky · velvety · caressing
guileless
Free from deceit
ingenuous · artless · simple · unworldly · trusting · wholesome · angelic · unsophisticated · unaffected · unpretentious
- non-hazardousclean water, inert gas, table salt, non-toxic, benign
- toxicity levelstoxic, nontoxic, lethal, safe, hazardous
- family-friendlywholesome, kid-friendly, G-rated, PG, all ages
- gentlegentle, mild, soft, tender, meek
- safety labelssafe, unsafe, dangerous, hazardous, toxic
- risk-freeguaranteed, secure, safe, protected, assured
harmlessevil
Profound moral wickedness
wicked · malevolent · malicious · cruel · vicious
harmlessdestructive
Causing severe harm
harmful · damaging · detrimental · injurious · ruinous
- hold harmlessProtect against legal responsibility