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infectiousness Synonyms

Another word for infectiousness

Choosing another word for infectiousness depends on context, so the synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

The quality or degree of being able to spread disease or infection from one organism to another through the environment or direct contact.

Usage Example

"Epidemiologists studied the new viral strain to determine its rate of infectivity among school-aged children."

Strongest
infectivity
contagiousness
transmissibility
Strong
communicability
virulence

• noun (Context 2)

The tendency of an emotion, mood, or quality to spread quickly and irresistibly from one person to others.

Usage Example

"The sheer contagiousness of the conductor's enthusiasm soon had the entire audience clapping along to the music."

Strongest
contagiousness
Strong
catchiness

• Nearby Words

infection
infectious
infectiously
infectiousness
infective
infectiveness
infector

Cite this Entry

Wordmom. (2026). Synonyms for Infectiousness. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/infectiousness
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