Found 2 items, similar to adamantine.
English → English (WordNet) Definition: adamantine adamantine adj 1: consisting of or having the hardness of adamant 2: having the hardness of a diamond 3: 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, inexorable, intransigent]
English → English (gcide) Definition: Adamantine 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]