as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
Synonyms & Similar Words
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Example Sentences
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Recent Examples of infectious
Additionally, screening is in place before travel is allowed from affected regions and people are only infectious once visibly ill, according to Kluge.
—
Mary Kekatos, ABC News, 11 June 2026
During the goofily infectious performance, a woman walking by spots the performer dancing and joins in as people around them cheer.
—Luke Chinman, PEOPLE, 10 June 2026
The energy is often infectious.
—Sam McDowell, Kansas City Star, 4 June 2026
Her kindness, generosity, and infectious spirit touched every single one of us.
—Harry Harris, Mercury News, 2 June 2026
See All Example Sentences for infectious
Mary Kekatos, ABC News, 11 June 2026
During the goofily infectious performance, a woman walking by spots the performer dancing and joins in as people around them cheer.
—Luke Chinman, PEOPLE, 10 June 2026
The energy is often infectious.
—Sam McDowell, Kansas City Star, 4 June 2026
Her kindness, generosity, and infectious spirit touched every single one of us.
—Harry Harris, Mercury News, 2 June 2026
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
catching
Adjective
-
Christian Vázquez, who replaced Diaz in the lineup Monday, figures to take on primary catching duties while Diaz is out.—
Matt Kawahara,
Houston Chronicle,
4 May 2026
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The Braves gained four years and millions of dollars by substituting Olson for Freeman at first base – even though one of those traded was slugging catching prospect Shea Langeliers.—
Dan Schlossberg,
Forbes.com,
15 Apr. 2026
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 20 Jun. 2026.
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