exurban UK /ɛɡˈzɜː.bən/US /ɛɡˈzɝ.bən/adjective 1noun 1forms 1 adjective1 •Of, pertaining to, or residing in an exurb.Mirella had a story about a duplex in a housing development of identical duplexes, exurban Cleveland, cornfields on one side and an expressway on the other. — 2020 noun1 •A person who lives in an exurb. formsexurbans