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
Researchers then checked whether the patients had been vaccinated, and used the information to calculate the odds of a positive test in the groups of unvaccinated and vaccinated individuals, respectively.
—
Rachel Raposas,
PEOPLE,
24 June 2026
Measles is one of the most contagious diseases known and can spread easily, especially among unvaccinated or undervaccinated populations.
—
Los Angeles Times,
19 June 2026
The case involves an unvaccinated adult in Hartford County who tested positive over the weekend, according to Brittany Schaefer, spokesperson for the state Department of Public Health.
—
Justin Muszynski,
Hartford Courant,
15 June 2026
The regional outbreak began with an unvaccinated traveler who returned to Placer County from South Carolina, where the nation’s largest measles outbreak was taking place.
—
Reeti Malhotra,
Sacbee.com,
9 June 2026
See All Example Sentences for unvaccinated
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Rachel Raposas,
PEOPLE,
24 June 2026
Measles is one of the most contagious diseases known and can spread easily, especially among unvaccinated or undervaccinated populations.
—
Los Angeles Times,
19 June 2026
The case involves an unvaccinated adult in Hartford County who tested positive over the weekend, according to Brittany Schaefer, spokesperson for the state Department of Public Health.
—
Justin Muszynski,
Hartford Courant,
15 June 2026
The regional outbreak began with an unvaccinated traveler who returned to Placer County from South Carolina, where the nation’s largest measles outbreak was taking place.
—
Reeti Malhotra,
Sacbee.com,
9 June 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 4 Jul. 2026.
Copy CitationMedical Definition
unvaccinated
adjective
un·vac·ci·nat·ed
-ˈvak-sə-ˌnāt-əd
: not vaccinated
unvaccinated children
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