implacable

implacable
adjective
  1. unable to be placated
    难平息的,不能缓和的,不饶恕的,不宽容的
    he was an implacable enemy of Ted's.
    他是特德的死敌。
    ■relentless; unstoppable
    无情的;不可阻挡的
    the implacable advance of the enemy.
    敌人势不可挡的前进。
派生
implacability
noun
implacably
adverb
语源
  1. late Middle English: from Latin implacabilis, from in- 'not' + placabilis (see placable)
英语宝典
考试词汇表