1
as in infectious
capable of being passed by physical contact from one person to another chicken pox, measles, German measles, and other contagious diseases

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms

2
as in spreading
exciting a similar feeling or reaction in others the enthusiasm of the new club members was contagious

Synonyms & Similar Words

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 contagious Measles, a highly contagious respiratory virus, can survive in the air for up to two hours, and 9 out of 10 unvaccinated individuals exposed to it will contract the virus. Tommy Tuberville, Newsweek, 6 Mar. 2025 Countries with long land borders faced much greater challenges: China was able to keep COVID-19 largely at bay for over two years but was ultimately overwhelmed by the more contagious Omicron variant. Edward Alden, Foreign Affairs, 6 Mar. 2025 Driving the news: Texas is home to the largest outbreak of the disease in the last 30 years and the first death in a decade from the highly contagious illness. Kristal Dixon, Axios, 5 Mar. 2025 The child who died Tuesday night in the outbreak is the first U.S. death from the highly contagious but preventable respiratory disease since 2015, the U.S. Centers for Disease Control and Prevention said. Democrat-Gazette Staff From Wire Reports, arkansasonline.com, 1 Mar. 2025 See All Example Sentences for contagious

Browse Nearby Words

Cite this Entry

“Contagious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/contagious. Accessed 22 Mar. 2025.

More from Merriam-Webster on contagious

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!