respondent UK /ɹɪˈspɒn.dənt/US /ɹɪˈspɑn.dənt/noun 3adjective 1forms 3 noun3 •One who responds; one who replies. •A person replying to a questionnaire. •A defendant, especially in a case instituted by a petition or in appellate and divorce proceedings. adjective1 •Disposed or expected to respond; answering; according; corresponding. formsrespondents · more respondent · most respondent