from
WordNet (r) 3.0 (2006)
adamantine
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}]
from
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.
[1913 Webster]
2. (Min.) Like the diamond in hardness or luster.
[1913 Webster]