uncompromising
adjective /ʌnˈkɒmprəmaɪzɪŋ/
  /ʌnˈkɑːmprəmaɪzɪŋ/
- unwilling to change your opinions or behaviour- an uncompromising attitude
- He has a reputation for being tough and uncompromising.
- He was quite uncompromising about high standards in art.
- The government has remained uncompromising on this issue.
 Oxford Collocations DictionaryUncompromising is used with these nouns:- attitude
- look
- stance
- …