unvaccinated
adjective
un·vac·ci·nat·ed
ˌən-ˈvak-sə-ˌnā-təd 
: not having received a vaccine : not vaccinated
children unvaccinated for measles
Examples of unvaccinated in a Sentence
Recent Examples on the Web
The outbreak was centered in communities with low vaccination rates, with most cases occurring in unvaccinated people.
—
Stephanie Innes, AZCentral.com, 26 Sep. 2025
Over two-thirds of infections had occurred in children, and more than 94% of cases were in unvaccinated people.
—Thao Nguyen, USA Today, 25 Sep. 2025
The unvaccinated sample was very small in comparison to the vaccinated sample.
—Kristen Jordan Shamus, Freep.com, 25 Sep. 2025
For example, an observational study published in June in the found that older veterans who received RSV shots were about 80 percent less likely to develop an infection, visit an emergency department or urgent care or be hospitalized compared with unvaccinated veterans.
—Liz Szabo, Scientific American, 23 Sep. 2025
See All Example Sentences for unvaccinated
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Stephanie Innes, AZCentral.com, 26 Sep. 2025
Over two-thirds of infections had occurred in children, and more than 94% of cases were in unvaccinated people.
—Thao Nguyen, USA Today, 25 Sep. 2025
The unvaccinated sample was very small in comparison to the vaccinated sample.
—Kristen Jordan Shamus, Freep.com, 25 Sep. 2025
For example, an observational study published in June in the found that older veterans who received RSV shots were about 80 percent less likely to develop an infection, visit an emergency department or urgent care or be hospitalized compared with unvaccinated veterans.
—Liz Szabo, Scientific American, 23 Sep. 2025
See All Example Sentences for unvaccinated
Cite this Entry
“Unvaccinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unvaccinated. Accessed 5 Oct. 2025.
Copy CitationMedical Definition
unvaccinated
adjective
un·vac·ci·nat·ed
-ˈvak-sə-ˌnāt-əd
: not vaccinated
unvaccinated children
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