English Lexicon

Unvaccinated

/ʌnˈvæk.sɪˌneɪ.tɪd/
adjectiveCEFR B2 (Upper)Top #4500 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Not having received a vaccine; lacking immunization against a particular disease.

    "Public health agencies closely monitored hospitalization rates among unvaccinated individuals."
  2. 2

    Specifically referring to a person who has not been inoculated with a specific vaccine, such as for COVID-19.

    "Travel restrictions were frequently adjusted for unvaccinated travelers."

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Antonyms & Contrasting Words (2)

Linguistic Origin & Historical Etymology

Derived from the prefix un- (meaning 'not') combined with vaccinated, which stems from the Latin 'vacca' (cow), referencing Edward Jenner's 18th-century smallpox vaccine utilizing cowpox. The term gained significantly heightened global usage and sociopolitical relevance during the COVID-19 pandemic.

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