obdurate

/-ət/adjective

Refusing to change your behaviour or admit you are wrong, no matter what anyone says.

Example sentence

“Despite every appeal from his family, he remained obdurate and would not apologise.”

Formal, and harsher than 'stubborn': it suggests a hardened refusal to feel or yield.

Related words

obedientDoing what you are told by people in charge, without arguing.oatmealA hot breakfast dish made by cooking crushed or rolled oats in water or milk.obfuscateTo make something confusing or difficult to understand on purpose.oasisA place in a desert where water rises from the ground and plants can grow.objectiveBased on facts rather than personal feelings or opinions; fair and unbiased.nutritiousContaining the substances your body needs; good for your health when eaten or drunk.