obdurate

 
Pronunciation: /ˈɒbdjʊrət/

adjective

  • stubbornly refusing to change one’s opinion or course of action: I argued this point with him, but he was obdurate

Derivatives

obduracy

noun

obdurately

adverb

obdurateness

noun

Origin:

late Middle English (originally in the sense 'hardened in sin, impenitent'): from Latin obduratus, past participle of obdurare, from ob- 'in opposition' + durare 'harden' (from durus 'hard')