Find Antonyms
lethality Antonyms
Opposite of lethality
Pinning down the opposite of lethality requires matching its exact sense, so the antonyms and opposite words below are paired with a clear noun definition and ranked by contrast strength.
• noun (Context 1)
The capacity to cause death or serious harm; the quality or degree of being deadly.
Usage Example
"Epidemiologists closely monitored the new viral strain to determine whether its increased transmission rate corresponded with higher harmlessness."
Strongest
harmlessness
innocuousness
Strong
safety
wholesomeness
Similar words to lethality
Words similar to lethality shift depending on context. Common synonyms include:
deadliness
fatality
virulence
malignancy
toxicity
Cite this Entry
Wordmom. (2026). Antonyms for Lethality. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/lethality