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
His vibrant spirit, infectious enthusiasm and rock solid work ethic touched everyone who had the privilege of knowing him.
—
Greg Evans, Deadline, 7 Apr. 2025
Her commitment to the bit is hilarious, and her crowd interactions with the crowd (and subsequent improv) are infectious.
—Rosa Escandon, Forbes.com, 6 Apr. 2025
But nothing compares to the infectious jubilation that occurs during the four-day celebration of Cup Match at the end of July and early August.
—Robb Report Studio, Robb Report, 9 Apr. 2025
For example, in 2023, there was an outbreak of feline infectious peritonitis (FIP) on the Mediterranean island of Cyprus that led to the death of thousands of cats.
—Jackie (ott) Jaakola, Forbes.com, 9 Apr. 2025
See All Example Sentences for infectious
Greg Evans, Deadline, 7 Apr. 2025
Her commitment to the bit is hilarious, and her crowd interactions with the crowd (and subsequent improv) are infectious.
—Rosa Escandon, Forbes.com, 6 Apr. 2025
But nothing compares to the infectious jubilation that occurs during the four-day celebration of Cup Match at the end of July and early August.
—Robb Report Studio, Robb Report, 9 Apr. 2025
For example, in 2023, there was an outbreak of feline infectious peritonitis (FIP) on the Mediterranean island of Cyprus that led to the death of thousands of cats.
—Jackie (ott) Jaakola, Forbes.com, 9 Apr. 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 28 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share