intransigence
US /ɪnˈtræn.sə.dʒəns/
UK /ɪnˈtræn.sə.dʒəns/

1.
refusal to change one's views or to agree about something
:
•
The government's intransigence on the issue led to a prolonged strike.
•
Her intransigence made negotiations very difficult.