If you describe someone as uncompromising, you mean that they are determined not to change their opinions or aims in any way.
Voters have elected an uncompromising nationalist as their new president.
选民们已选出一位坚定的民族主义者作为他们的新总统。
If you describe something as uncompromising, you mean that it does not attempt to make something that is shocking or unpleasant any more acceptable to people.
a film of uncompromising brutality.
一部极度血腥的电影。