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 majority of new infections this year are among young, unvaccinated children.
—
Bloomberg, Mercury News, 23 Jan. 2026
According to the county's Health & Human Services Agency, the case involves an unvaccinated child who became ill after visiting South Carolina, where a large measles outbreak is taking place.
—Tim Fang, CBS News, 22 Jan. 2026
Older adults who got the vaccine showed slower overall biological aging on average than unvaccinated participants.
—Emily Kay Votruba, EverydayHealth.com, 22 Jan. 2026
All three deaths occurred in unvaccinated people, two children and one adult.
—Joseph Choi, The Hill, 20 Jan. 2026
See All Example Sentences for unvaccinated
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.
Bloomberg, Mercury News, 23 Jan. 2026
According to the county's Health & Human Services Agency, the case involves an unvaccinated child who became ill after visiting South Carolina, where a large measles outbreak is taking place.
—Tim Fang, CBS News, 22 Jan. 2026
Older adults who got the vaccine showed slower overall biological aging on average than unvaccinated participants.
—Emily Kay Votruba, EverydayHealth.com, 22 Jan. 2026
All three deaths occurred in unvaccinated people, two children and one adult.
—Joseph Choi, The Hill, 20 Jan. 2026
See All Example Sentences for unvaccinated
Cite this Entry
“Unvaccinated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unvaccinated. Accessed 27 Jan. 2026.
Copy CitationMedical Definition
unvaccinated
adjective
un·vac·ci·nat·ed
-ˈvak-sə-ˌnāt-əd
: not vaccinated
unvaccinated children
Love words? Need even more definitions?
Merriam-Webster unabridged
