underclothes
nounNAmE//ˈʌndərˌkloʊz//, NAmE//ˈʌndərˌkloʊðz//
[plural] (also underclothing NAmE//ˈʌndərˌkloʊðɪŋ//
[uncountable]) (formal)Check pronunciation: underclothes
Definition of underclothes noun from the Oxford Advanced American Dictionary