unidentified

1 known but not named an unidentified worker reported the security breach Synonyms anonymous, given, one, some, certain, unnamed, unspecifiedRelated Words particular, specificNear Antonyms known, named, specified

2 not named or identified by a name some unidentified person helped them and then left quietly Synonyms anonymous, faceless, incognito, innominate, unbaptized, unchristened, nameless, unnamed, untitledRelated Words undetermined, unspecified; obscure, uncelebrated, unheard-of, unheralded, unknown, unsung; unexceptional, unremarkableNear Antonyms denominated, designated, specified; labeled (or labelled), tabbed, titled; celebrated, famed, famous, known, notable, noted, noteworthy, remarkable, renowned, well-known; exceptionalAntonyms baptized, christened, dubbed, named, termed