3. [syn: adamant, adamantine, inexorable, intransigent]
The Collaborative International Dictionary of English v.0.48:
Adamantine \Ad`a*man"tine\, a. [L. adamantinus, Gr. ?.]
1. Made of adamant, or having the qualities of adamant;
incapable of being broken, dissolved, or penetrated; as,
adamantine bonds or chains.
2. (Min.) Like the diamond in hardness or luster.
WordNet (r) 3.0 (2006):
adj 1: consisting of or having the hardness of adamant
2: having the hardness of a diamond
3: impervious to pleas, persuasion, requests, reason; "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 tendency"
[syn: adamant, adamantine, inexorable, intransigent]