as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
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Examples of infectious in a Sentence
Recent Examples on the Web
Sawyer consistently excels in the classroom and brings an infectious enthusiasm to discussions.
—
Caroline Beck, The Indianapolis Star, 14 Oct. 2024
Liam had an energy for life and a passion for work that was infectious.
—Lindsay Kimble, People.com, 18 Oct. 2024
The joy surrounding this movie is downright infectious.
—EW.com, 17 Oct. 2024
Treatments for infectious causes may include antiviral medication, antibiotics, or antiparasitic therapy that’s targeted to the specific cause of your liver infection.
—Heidi Moawad, Verywell Health, 17 Oct. 2024
See all Example Sentences for infectious 
Caroline Beck, The Indianapolis Star, 14 Oct. 2024
Liam had an energy for life and a passion for work that was infectious.
—Lindsay Kimble, People.com, 18 Oct. 2024
The joy surrounding this movie is downright infectious.
—EW.com, 17 Oct. 2024
Treatments for infectious causes may include antiviral medication, antibiotics, or antiparasitic therapy that’s targeted to the specific cause of your liver infection.
—Heidi Moawad, Verywell Health, 17 Oct. 2024
See all Example Sentences for infectious
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'infectious.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 4 Nov. 2024.
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