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
As of Tuesday, state officials have not confirmed any measles cases in the Metroplex, despite multiple occasions when people who were infectious exposed others in public in recent weeks.
—
Matt Leclercq, Fort Worth Star-Telegram, 22 Apr. 2025
The song borders on the absurd, but its faith in the metaphysical properties of a melody is infectious.
—Craig Jenkins, Vulture, 22 Apr. 2025
Do not sweep or vacuum the area — that could stir up droppings or other infectious materials into the air.
—Karen Garcia, Los Angeles Times, 10 Apr. 2025
Individuals are infectious four days prior to and four days after rash onset.
—Matt Leclercq, Fort Worth Star-Telegram, 18 Apr. 2025
See All Example Sentences for infectious
Matt Leclercq, Fort Worth Star-Telegram, 22 Apr. 2025
The song borders on the absurd, but its faith in the metaphysical properties of a melody is infectious.
—Craig Jenkins, Vulture, 22 Apr. 2025
Do not sweep or vacuum the area — that could stir up droppings or other infectious materials into the air.
—Karen Garcia, Los Angeles Times, 10 Apr. 2025
Individuals are infectious four days prior to and four days after rash onset.
—Matt Leclercq, Fort Worth Star-Telegram, 18 Apr. 2025
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
Adjective
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Kersting, who threw out 10 runners trying to steal as a freshman, has taken individual catching lessons since the summer before that year from Mike Kuefler, who also coaches at Kaneland.—
Rick Armstrong,
Chicago Tribune,
3 Apr. 2025
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Almost every team calls on their catching depth throughout the season.—
Grant Brisbee,
The Athletic,
24 Mar. 2025
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 11 May. 2025.
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