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.
On average, an infected person will infect as many as 18 other unvaccinated people. Maria Godoy, NPR, 12 Oct. 2025 Only 2019, when the disease spread through unvaccinated communities in New York, comes close. Suhail Bhat, USA Today, 2 Oct. 2025 Rather, the data show that kids who were vaccinated were much less likely to get COVID-19 in the first place and were also less likely to get reinfected compared to unvaccinated children. Alice Park, Time, 1 Oct. 2025 The outbreak was centered in communities with low vaccination rates, with most cases occurring in unvaccinated people. Stephanie Innes, AZCentral.com, 26 Sep. 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 16 Oct. 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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