[ 'ɒbdjʊrət ]
■ adjective stubbornly refusing to change one's opinion or course of action.
Derivatives
obduracy noun
~ly adverb
~ness noun
Origin
ME (orig. in the sense 'impenitent'): from L. obduratus , past participle of obdurare , from ob- 'in opposition' + durare 'harden'.