underestimate Pronunciation: /ʌndərˈestɪmeɪt/Translate underestimate | into French | into Italian | into Spanish German translation of underestimateA. v.t. unterschätzenB. /ʌndərˈestɪmət/ n. Unterschätzungunderestimate in other Oxford dictionaries Definition of underestimate in the British & World English dictionary Definition of underestimate in the US English dictionary