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Definitions

harmless

[hahrm-lis] / ˈhɑrm lɪs /
ADJECTIVE
not injurious or dangerous
Synonyms
STRONGEST
gentle innocent innocuous inoffensive naive nontoxic painless powerless simple
WEAK
controllable disarmed guiltless hurtless innoxious inoperative kind manageable nonirritating paper-tiger reliable safe sanitary soft softie sound sure trustworthy unobjectionable unoffensive
Antonyms
STRONGEST
bad damaging experienced harmful strong
WEAK
destructive evil hurtful injurious sinful wicked

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The prosecution failed to meet its burden to demonstrate, beyond a reasonable doubt, that the constitutional error was harmless, the justices concluded.

From Los Angeles Times • Apr. 14, 2026

At the same time, I have come to regard my tech tweaks as a relatively harmless nonhuman gesture.

From MarketWatch • Apr. 3, 2026

Therefore, no affected person was in the courtroom to refute the therapist’s claim that, since she only deploys speech, her counseling is harmless and deserves First Amendment protection.

From Slate • Apr. 3, 2026

Is it harmless fun—like guessing about the Nobel—or not?

From The Wall Street Journal • Mar. 23, 2026

Fire could look so harmless and be so deadly.

From "Willodeen" by Katherine Applegate