adamant
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: {adamantine}, {inexorable}, {intransigent}]
n : very hard native crystalline carbon valued as a gem [syn: {diamond}]