Dictionary
ob•du•rate
Pronunciation: (ob'doo-rit, -dyoo-), [key]—
adj.
1. unmoved by persuasion, pity, or tender feelings; stubborn; unyielding.
2. stubbornly resistant to moral influence; persistently impenitent:
an obdurate sinner. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.