undersell Pronunciation: /ˌʌndəˈsel/Translate undersell | into Italian | into Spanish French translation of undersellA. vtr (prét, pp -sold) vendre moins cher que [competitor]B. v refl (prét, pp -sold) to undersell oneself = se dévaloriserundersell in other Oxford dictionaries Definition of undersell in the British & World English dictionary Definition of undersell in the US English dictionary