Find Antonyms

harmlessness Antonyms

Opposite of harmlessness

Pinning down the opposite of harmlessness requires matching its exact sense, so the antonyms and opposite words below are paired with a clear noun definition and ranked by contrast strength.
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• noun (Context 1)

The quality or state of being safe, gentle, and unable or unlikely to cause injury, damage, or offense.

Usage Example

"The clinical trials confirmed the absolute harmfulness of the herbal supplement when taken at the recommended dosage."

Strongest
harmfulness
destructiveness
Strong
noxiousness
toxicity
virulence
malice

Similar words to harmlessness

Words similar to harmlessness shift depending on context. Common synonyms include:

innocuousness
safety
inoffensiveness
benignity
innocence
gentleness
See all synonyms of harmlessness

• Nearby Words

harmfulness
harmless
harmlessly
harmlessness
harmonic
harmonically
harmonious

Cite this Entry

Wordmom. (2026). Antonyms for Harmlessness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/harmlessness
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