as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
Synonyms & Similar Words
Relevance
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of infectious
The melody and the chorus are infectious.
—
Irene Kim, Vogue, 16 Jan. 2026
The Cubs hope that Bregman’s intensity is infectious.
—Jon Greenberg, New York Times, 16 Jan. 2026
His optimism is infectious but unrealistic at times, leading him to avoid accountability until consequences catch up.
—Valerie Mesa, PEOPLE, 13 Jan. 2026
The infectious chorus and high-energy rhythm served as a rallying cry for a nation that believed, in that fleeting moment, that change was truly within reach.
—Leonor C. Suárez, Rolling Stone, 13 Jan. 2026
See All Example Sentences for infectious
Irene Kim, Vogue, 16 Jan. 2026
The Cubs hope that Bregman’s intensity is infectious.
—Jon Greenberg, New York Times, 16 Jan. 2026
His optimism is infectious but unrealistic at times, leading him to avoid accountability until consequences catch up.
—Valerie Mesa, PEOPLE, 13 Jan. 2026
The infectious chorus and high-energy rhythm served as a rallying cry for a nation that believed, in that fleeting moment, that change was truly within reach.
—Leonor C. Suárez, Rolling Stone, 13 Jan. 2026
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
catching
Adjective
-
Scott Wedgewood survived much of his lone year in the ECHL without any backup in net and without any backup for his catching hand.—
Bennett Durando,
Denver Post,
23 Dec. 2025
-
Aside from all that fun, be sure to brush up on your catching skills, because there’s free candy that the performers hurl out to the audience.—
Randy McMullen,
Mercury News,
18 Dec. 2025
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 4 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
