Although I have on many occasions used this word to describe others, I too have been so labeled. You decide.
obdurate (ob·du·rate): / OB doo rit /
adjective
(1) stubborn; unyielding; resistant to influence or persuasion
(2) not easily moved by pity; hard-hearted; unfeeling or uncaring
(3) stubbornly resistant to moral influence; persistently unrepentant; hardened against softening influences
[From Middle English obdurat via Latin obduratus, past participle of obdurare meaning “to harden, to be hard,” from Latin durus meaning “hard.”]
Usage: George W. Bush revels in his obdurate disinclination to respect the law and, more importantly, the U.S. Constitution.