1. a person who does not respond to a particular treatment, medication, or stimulus
Usage: medical
2. a person who fails to reply or react to communication or requests

Examples

• The patient was classified as a nonresponder to the new cancer drug.
• About 30% of participants were nonresponders to the antidepressant medication.
• The study identified genetic factors that predict nonresponders to the vaccine.
• She was frustrated by the nonresponders who ignored her survey requests.
• The clinical trial excluded nonresponders from the second phase of testing.
• Researchers are working to understand why some patients are nonresponders to immunotherapy.