unprimed Syllabification: (un·primed)Pronunciation: /ˌənˈprīmd/Definition of unprimed adjective not made ready for use or action, in particular. (of wood, canvas, or metal) not covered with primer or undercoat. Biology & Medicine (of a cell) not having an induced susceptibility or proclivity. unprimed in other Oxford dictionaries Definition of unprimed in the British & World English dictionary