adamantine

ad·a·man·tine

A0075900 (ăd′ə-măn′tēn′, -tīn′, -tĭn)adj.1. Made of or resembling adamant.2. Having the hardness or luster of a diamond.3. Unyielding; inflexible: "If there is one dominant trait that emerges from this account, it is adamantine willpower" (Eugene Linden).

adamantine

(ˌædəˈmæntaɪn) adj1. very hard; unbreakable or unyielding2. having the lustre of a diamond

ad•a•man•tine

(ˌæd əˈmæn tin, -tɪn, -taɪn)

adj. 1. utterly unyielding or firm; hard. 2. like a diamond in luster. [1200–1250; Middle English < Latin adamantinus < Greek adamántinos. See adamant, -ine¹]

Thesaurus

Adj.	1.	adamantine - consisting of or having the hardness of adamant
	2.	adamantine - having the hardness of a diamond hard - resisting weight or pressure
	3.	adamantine - 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"adamant, intransigent, inexorableinflexible - incapable of change; "a man of inflexible purpose"

adamantine

adjectiveFirmly, often unreasonably immovable in purpose or will:adamant, brassbound, die-hard, grim, implacable, incompliant, inexorable, inflexible, intransigent, iron, obdurate, relentless, remorseless, rigid, stubborn, unbendable, unbending, uncompliant, uncompromising, unrelenting, unyielding.Idiom: stubborn as a mule.

Translations

hartnäckigadamantinadamantinoадамантовый