Use 'intransigent' to describe someone hindering agreement by not altering their viewpoint. The deal collapsed because the lead negotiator was intransigent.
Pro Tip 2/3
Political Context
'Intransigent' is often used in politics to describe leaders or parties that won’t compromise. The legislation failed due to the intransigent stance of the opposition party.
Pro Tip 3/3
Suggests Rigidity
It implies a rigid, often negative, unwillingness to change, not just firmness. His intransigent attitude made collaboration difficult.