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
One of your collective super powers is your genuine love of movies – from big tentpoles to specialty titles – your dedication, expertise and infectious fandom – are responsible for so many of our big wins.
—
Borys Kit, The Hollywood Reporter, 21 Feb. 2025
These ventilation systems function like high-volume air samplers, creating negative pressure inside poultry houses that draws in huge quantities of ambient air effectively concentrating whatever particulates may be in that air, in this case infectious virions of H5N1.
—John Drake, Forbes, 21 Feb. 2025
Marking his debut single under his new signing with Rimas Entertainment, the Puerto Rican artist delivers an infectious tropical tune with percussion, trombones, trumpets, and more, while his flirty vocals sing about a guy who’s trying to impress a girl with his English-speaking skills.
—Griselda Flores, Billboard, 21 Feb. 2025
Those plumes of infectious aerosols may end up on clothing, equipment and vehicles that can also carry the virus from one place to the next.
—Brenda Goodman, CNN, 18 Feb. 2025
See All Example Sentences for infectious
Borys Kit, The Hollywood Reporter, 21 Feb. 2025
These ventilation systems function like high-volume air samplers, creating negative pressure inside poultry houses that draws in huge quantities of ambient air effectively concentrating whatever particulates may be in that air, in this case infectious virions of H5N1.
—John Drake, Forbes, 21 Feb. 2025
Marking his debut single under his new signing with Rimas Entertainment, the Puerto Rican artist delivers an infectious tropical tune with percussion, trombones, trumpets, and more, while his flirty vocals sing about a guy who’s trying to impress a girl with his English-speaking skills.
—Griselda Flores, Billboard, 21 Feb. 2025
Those plumes of infectious aerosols may end up on clothing, equipment and vehicles that can also carry the virus from one place to the next.
—Brenda Goodman, CNN, 18 Feb. 2025
See All Example Sentences for infectious
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 13 Mar. 2025.
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