intransigent (
http://definr.com/intransigent)
adj : not capable of being swayed or diverted from a course;
unsusceptible to persuasion; "he is adamant in his
refusal to change his mind"; "Cynthia was inexorable;
she would have none of him"- W.Churchill; "an
intransigent conservative opposed to every liberal
tendancy" [syn:
adamant,
adamantine,
inexorable]