undercharge Syllabification: (un·der·charge)Translate undercharge | into Italian | into Spanish Definition of undercharge verb Pronunciation: /ˌəndərˈCHärj/ [with object] 1charge (someone) a price or amount that is too low. 2give less than the proper charge to (an electric battery). noun Pronunciation: /ˈəndərˌCHärj/ a charge that is insufficient. undercharge in other Oxford dictionaries Definition of undercharge in the British & World English dictionary