in.ex.cus.a.bleadj.(形容词)Impossible to excuse or justify; unpardonable:不可原谅的:不能宽恕或不能找借口辩解的;不可宽恕的:例句:inexcusable behavior.不可原谅的行为【引伸】in.excus.ablenessn.(名词)in.excus.ablyadv.(副词)