as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
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Recent Examples of infectious
The Haim sisters met a fave housewife, RHONJ’s Dolores Catania, on Tuesday’s WWHL, and their excitement was infectious.
—
Bethy Squires, Vulture, 27 June 2025
State health officials estimated less than 1% of cases — fewer than 10 — are actively infectious.
—Devi Shastri, Chicago Tribune, 21 June 2025
Vega brought an infectious attitude to the team that finished the year 24-1 and wound up No. 1 in the nation in the MaxPreps rankings.
—Gary Curreri, Sun Sentinel, 20 June 2025
With great talent and infectious enthusiasm, the troupe is one of the most popular circus acts in the Bay Area.
—Randy McMullen, Mercury News, 19 June 2025
See All Example Sentences for infectious
Bethy Squires, Vulture, 27 June 2025
State health officials estimated less than 1% of cases — fewer than 10 — are actively infectious.
—Devi Shastri, Chicago Tribune, 21 June 2025
Vega brought an infectious attitude to the team that finished the year 24-1 and wound up No. 1 in the nation in the MaxPreps rankings.
—Gary Curreri, Sun Sentinel, 20 June 2025
With great talent and infectious enthusiasm, the troupe is one of the most popular circus acts in the Bay Area.
—Randy McMullen, Mercury News, 19 June 2025
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
catching
Adjective
-
Rice has been keeping his catching skills sharp with daily work behind the scenes.—
Gary Phillips,
New York Daily News,
17 June 2025
-
An under the radar offseason addition originally expected to do little more than provide catching depth behind Connor Wong, Narvaez has emerged as one of the best all-around catchers in the game through the first third of his rookie season.—
Mac Cerullo,
Boston Herald,
5 June 2025
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 10 Jul. 2025.
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