adjective
- not having received a vaccine or vaccination against a disease
Usage: medical
Examples
- Unimmunized children are at higher risk for measles.
- The school requires vaccination records for all students who were previously unimmunized.
- Health officials are concerned about unimmunized populations during flu season.
- Parents must provide medical exemptions for unimmunized children.
- The outbreak spread quickly among unimmunized individuals.
- Travel to certain countries requires that visitors not be unimmunized against yellow fever.