the super-strong metal from various fictional universes.

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 αδαμας (adamas), meaning "untameable". The word adamant is comparable to the word brimstone, an archaic word for sulphur. Since diamond is now used exclusively for the hardest gemstone, the increasingly archaic adamant–and its adjectival form adamantine–has a mostly poet ...

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• Adamant - Examples of use

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