as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
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Example Sentences
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Recent Examples of infectious
Cases rose quickly in Colorado last month when an out-of-state traveler flew while infectious, leading to multiple cases among passengers on the same plane, and others among people who were in the airport at the same time and broader community spread from those cases.
—
Deidre McPhillips, CNN Money, 5 July 2025
Cunningham has a bubbly, infectious and talkative personality that pairs perfectly with her chic style.
—Kaycee Sloan, The Enquirer, 2 July 2025
Powered by fireworks, genre-hopping hits and his genuinely infectious personality, Malone appears to have set a state record for the largest-grossing single-day event in Idaho history.
—Michael Deeds, Idaho Statesman, 25 June 2025
From the thundering beats to the infectious energy of the crowd, every moment served as an in-your-face reminder that music shapes, inspires, and unites.
—Ali Lerman, Los Angeles Times, 23 June 2025
See All Example Sentences for infectious
Deidre McPhillips, CNN Money, 5 July 2025
Cunningham has a bubbly, infectious and talkative personality that pairs perfectly with her chic style.
—Kaycee Sloan, The Enquirer, 2 July 2025
Powered by fireworks, genre-hopping hits and his genuinely infectious personality, Malone appears to have set a state record for the largest-grossing single-day event in Idaho history.
—Michael Deeds, Idaho Statesman, 25 June 2025
From the thundering beats to the infectious energy of the crowd, every moment served as an in-your-face reminder that music shapes, inspires, and unites.
—Ali Lerman, Los Angeles Times, 23 June 2025
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
catching
Adjective
-
Turning Rice into a regular catching option also opens potential trade possibilities for the Yankees.—
Brendan Kuty,
New York Times,
18 June 2025
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Rice has been keeping his catching skills sharp with daily work behind the scenes.—
Gary Phillips,
New York Daily News,
17 June 2025
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 18 Jul. 2025.
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