non-responder

See also: nonresponder

English

Etymology

From non- +‎ responder.

Noun

non-responder (plural non-responders)

  1. Someone who does not respond.
    A vaccine non-responder is a person who does not develop protective surface antibodies after completing two full series of injections.
    The court sent "requests to show cause" to all questionnaire non-responders.