underperform Syllabification: (un·der·per·form)Pronunciation: /ˌəndərpərˈfôrm/Definition of underperform verb [no object] perform less well than expected. [with object] increase in value less than:the shares have underperformed the marketDerivatives underperformancePronunciation: /-ˈfôrməns/ noun underperform in other Oxford dictionaries Definition of underperform in the British & World English dictionary
