intransigent
/ɪnˈtrænsɪdʒənt/
adjective
- Refusing to change one's opinions or behavior, especially when others disagree.
- She was intransigent about her decision, no matter what anyone said.
- The intransigent manager refused to listen to any new ideas.
- Both sides remained intransigent, so the argument continued for hours.
Synonyms