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Definition of infectiously

infectiously

/ɪnˈfɛk.ʃəs.li/
in · fec · tious · ly
Adjective:infectious
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infectiously Lexical Profile

infectiously Game Scores & Validity

• adverb

1

In a manner that spreads rapidly from one person to another, especially regarding positive emotions, laughter, or enthusiasm.

Example

"She grinned infectiously, and soon the entire classroom was smiling along with her."

2

In a manner capable of transmitting disease or infection through the environment.

Example

"The pathogen spreads infectiously through airborne droplets in crowded indoor spaces."

Synonyms
View all synonyms for infectiously

• Nearby Words

infect
infection
infectious
infectiously
infectiousness
infective
infectiveness

Cite this Entry

Wordmom. (2026). Definition of Infectiously. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/infectiously
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