Adamant

Adamant and similar words are used to refer to any especially hard substance, whether composed of diamond, some other gemstone, or some type of metal. Both adamant and diamond derive from the Greek word αδαμαστος (adamastos), meaning `untameable`. Adamantite and adamantium (a metallic name derived from the Neo-Latin ending -ium) are als.....
Found on http://en.wikipedia.org/wiki/Adamant

Adamant

• (n.) A stone imagined by some to be of impenetrable hardness; a name given to the diamond and other substances of extreme hardness; but in modern mineralogy it has no technical signification. It is now a rhetorical or poetical name for the embodiment of impenetrable hardness. • (n.) Lodestone; magnet.
Found on http://thinkexist.com/dictionary/meaning/adamant/

adamant

1. A stone imagined by some to be of impenetrable hardness; a name given to the diamond and other substance of extreme hardness; but in modern minerology it has no technical signification. It is now a rhetorical or poetical name for the embodiment of impenetrable hardness. 'Opposed the rocky orb Of tenfold adamant, his ample shield.' (Milton) ... 2...
Found on http://www.encyclo.co.uk/local/20973

adamant

adamantine adjective 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 tenden...
Found on https://www.encyclo.co.uk/local/20974

Adamant

Ad'a·mant (ăd'ȧ*mănt) noun [ Middle English adamaunt , adamant , diamond, magnet, Old French adamant , Latin adamas , adamantis , the hardest metal, from Greek 'ada`mas , -antos ; 'a priv. + dama^,n to ...
Found on http://www.encyclo.co.uk/webster/A/25

adamant

adamant Adam's aunt.
Found on http://www.wordinfo.info/words/index/info/view_unit/2978/

Adamant

archaic or obsolete terms > Stones & Minerals: A stone once believed to be impenetrable in its hardness. An extremely hard substance. Also used in Old English to mean magnet. As the name of any stone of impenetrable hardness it is often the name given to the diamond.
Found on http://www.skyscript.co.uk/glossarytt.html

Adamant

HMS Adamant was a British submarine depot ship of 12500 tons displacement launched in 1939. HMS Adamant had a top speed of 17 knots and was armed with eight 4.5 inch guns and two multiple pompoms.
Found on http://www.probertencyclopaedia.com/browse/RA.HTM

adamant

impervious to pleas, persuasion, requests, reason
Found on https://www.vocabulary.com/lists/148703

adamant

kind of stone inflexible 
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adamant

very hard native crystalline carbon valued as a gem
Found on https://www.vocabulary.com/lists/675552

adamant

very hard native crystalline carbon valued as a gem
Found on https://www.vocabulary.com/lists/675552

adamant

[adj] - not capable of being swayed or diverted from a course
Found on http://www.webdictionary.co.uk/definition.php?query=adamant
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