underreport Syllabification: (un·der·re·port)Pronunciation: /ˌəndə(r)riˈpôrt/Definition of underreport verb [with object] fail to report (something) fully:athletes are inclined to underreport their use of drugs (as adjective underreported)underreported domestic violenceunderreport in other Oxford dictionaries Definition of underreport in the British & World English dictionary