oversellPronunciation: /əʊvəˈsɛl/Translate oversell | into Italian Definition of oversell verb (past and past participle oversold) [with object] sell more of (something) than exists or can be delivered: he defrauded investors by deliberately overselling time shares exaggerate the merits of:computer-aided software engineering has been oversoldoversell in other Oxford dictionaries Definition of oversell in the US English dictionary