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
With its infectious groove, sizzling guitar, timely message, and Mac’s effortlessly smooth vocals, the song becomes a memorable anthem.
—
Jessica Nicholson, Billboard, 25 Aug. 2025
The lone reason to buy a ticket was to witness her dancing with eight other women and to celebrate the infectious beats and positive messages of her songs with a Grandstand full of kindred spirits.
—Rob Hubbard, Twin Cities, 23 Aug. 2025
Her passion was so infectious that her husband, Naresh, joined her.
—Rhea Mogul, CNN Money, 22 Aug. 2025
For example, a health care worker in close contact with someone with pneumonic plague could inhale infectious particles from the patient; those particles could then travel directly to their lungs and result in pneumonic plague.
—Alice Park, Time, 21 Aug. 2025
See All Example Sentences for infectious
Jessica Nicholson, Billboard, 25 Aug. 2025
The lone reason to buy a ticket was to witness her dancing with eight other women and to celebrate the infectious beats and positive messages of her songs with a Grandstand full of kindred spirits.
—Rob Hubbard, Twin Cities, 23 Aug. 2025
Her passion was so infectious that her husband, Naresh, joined her.
—Rhea Mogul, CNN Money, 22 Aug. 2025
For example, a health care worker in close contact with someone with pneumonic plague could inhale infectious particles from the patient; those particles could then travel directly to their lungs and result in pneumonic plague.
—Alice Park, Time, 21 Aug. 2025
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
catching
Adjective
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Kirk, logging more catching time than ever before, is perhaps the exception.—
Mitch Bannon,
New York Times,
18 Aug. 2025
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However, Boone was incredibly complimentary of Rice’s catching skills on Monday and Tuesday.—
Gary Phillips,
New York Daily News,
12 Aug. 2025
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 10 Sep. 2025.
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