unvaccinated

adjective

un·​vac·​ci·​nat·​ed ˌən-ˈvak-sə-ˌnā-təd How to pronounce unvaccinated (audio)
: not having received a vaccine : not vaccinated
children unvaccinated for measles

Examples of unvaccinated in a Sentence

Recent Examples on the Web
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.
Globally, 171,000 fewer children remained unvaccinated last year than in 2023, according to the report. Jacqueline Howard, CNN Money, 15 July 2025 The Centers for Disease Control and Prevention recommends that unvaccinated travelers receive both doses of the MMR (measles, mumps, and rubella) vaccine at least two weeks before international travel. Lillian Ashworth, Oc Register, 10 July 2025 Schools were identified as a key place for transmission because the younger age group was the most unvaccinated and the most vulnerable to getting measles. Nicole Villalpando, Austin American Statesman, 10 July 2025 State and local health officials confirmed the first patient who died was an unvaccinated school-aged child, and the second was an unvaccinated 8-year-old girl. Nicole Brown Chau, CBS News, 9 July 2025 See All Example Sentences for unvaccinated

Word History

First Known Use

1871, in the meaning defined above

Time Traveler
The first known use of unvaccinated was in 1871

Browse Nearby Words

Cite this Entry

“Unvaccinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unvaccinated. Accessed 5 Aug. 2025.

Medical Definition

unvaccinated

adjective
un·​vac·​ci·​nat·​ed -ˈvak-sə-ˌnāt-əd How to pronounce unvaccinated (audio)
: not vaccinated
unvaccinated children
Last Updated: - Updated example sentences
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