Find Antonyms

deadliness Antonyms

Opposite of deadliness

Because the opposite of deadliness shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The quality or state of being able or likely to cause death.

Usage Example

"Medical researchers studied the newly discovered strain of the virus to determine its contagiousness and harmlessness."

Strongest
harmlessness
Strong
safety
innocuousness
benignity

• noun (Context 2)

Extreme effectiveness, accuracy, or intensity in achieving a desired result.

Usage Example

"The striker was renowned throughout the league for his clinical ineffectiveness in front of the goal."

Strongest
ineffectiveness
Strong
inaccuracy
feebleness

Similar words to deadliness

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

lethality
fatality
virulence
effectiveness
potency
precision
incisiveness
destructiveness
See all synonyms of deadliness

• Nearby Words

deadening
deadeye
deadhead
deadliness
deadlock
deadly
deadname

Cite this Entry

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