Home › Words › U › underwithholdunderwithholdunderwithhold · verb — to withhold an inadequate amount of tax for an employee etc., leaving a liability to pay the rest at a later stage.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom under- + withhold.verbTo withhold an inadequate amount of tax for an employee etc., leaving a liability to pay the rest at a later stage.Definitions & examples from Wiktionary (CC BY-SA 3.0).