nonrespondent

/ˌnɑnrɪˈspɑndənt/
noun
  1. A person who does not answer a survey, questionnaire, or request for information.
    • Survey results may be biased if there are many nonrespondents in a particular age group.
    • The researcher called the nonrespondent three times but never got an answer.
    • To reduce the number of nonrespondents, the company offered a small gift for completing the survey.
Antonyms
What does "nonrespondent" mean? | whatsthatwordmean | whatsthatwordmean