ADJ-GRADED 不能安抚的;无法平息的;毫不妥协的 If you say that someone is implacable, you mean that they have very strong feelings of hostility or disapproval which nobody can change. 不能安抚的;无法平息的;毫不妥协的
...the threat of invasion by a ruthless and implacable enemy.
残暴无情的敌人发出的侵略威胁
The move has won the implacable opposition of many economists.