as in spreading
exciting a similar feeling or reaction in others
an infectious giggle that got the whole class laughing
Synonyms & Similar Words
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Example Sentences
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Recent Examples of infectious
Senior center fielder Taylor Lane pointed to how Amschler plays with an infectious spirit.
—
Patrick Z. McGavin, Chicago Tribune, 16 Apr. 2026
An indie rock band struggling to make its mark finds a possible meal ticket in an infectious new guitar riff.
—Ryan Lattanzio, IndieWire, 16 Apr. 2026
People can be exposed without coming into direct contact with someone who is infectious, because the virus can linger in the air for up to two hours, Blumberg said.
—Sacbee.com, 15 Apr. 2026
Great cast members display an infectious enthusiasm that inspires visitors to want to get into their load row and onto that boat and sit down as swiftly as possible.
—Robert Niles, Oc Register, 14 Apr. 2026
See All Example Sentences for infectious
Patrick Z. McGavin, Chicago Tribune, 16 Apr. 2026
An indie rock band struggling to make its mark finds a possible meal ticket in an infectious new guitar riff.
—Ryan Lattanzio, IndieWire, 16 Apr. 2026
People can be exposed without coming into direct contact with someone who is infectious, because the virus can linger in the air for up to two hours, Blumberg said.
—Sacbee.com, 15 Apr. 2026
Great cast members display an infectious enthusiasm that inspires visitors to want to get into their load row and onto that boat and sit down as swiftly as possible.
—Robert Niles, Oc Register, 14 Apr. 2026
See All Example Sentences for infectious
Recent Examples of Synonyms for infectious
catching
Adjective
-
The designs are eye catching and beautiful, inspired by South Florida's beaches and ocean water.—
Najahe Sherman,
CBS News,
14 Apr. 2026
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In the snaps, Hemsworth can be seen catching waves alongside his twin sons, Sasha and Tristan, 12, as well as cliff jumping and spending time with some friends by the water.—
Georgia Slater,
PEOPLE,
8 Apr. 2026
Cite this Entry
“Infectious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infectious. Accessed 26 Apr. 2026.
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