a.

1. 无法改变的；不可阻挡的
   inexorable price rises

   无法抑制的物价上涨

   their inexorable fate

   他们无可变更的命运

2. 无动于衷的；毫不宽容的，无情的
   an inexorable opponent

   无情的对手

adj.

1. impossible to stop or prevent:
   the inexorable march of new technology.
2. impossible to persuade by request or entreaty.