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/ˌæ.dəˈmæn.tɪ.əm/ · noun
(fiction, also attributive) A fictional metal which is indestructible or nearly so..
It was a bullet. It was a small slug of adamantium, the toughest and hardest of all metals, crammed to capacity with the terrific explosive feroxite and would burst instantly on any reasonable heavy impact.
It's imperative that these experiments be concluded with haste! The military must know the potential of this new adamantium at once! Even the President is standing by!
We knew the egg was adamantium. Not much else could have been learnt.
Use adamantium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Adamantium means (fiction, also attributive) A fictional metal which is indestructible or nearly so..
Common synonyms include adamantine, adamantite.
The opposite depends on the specific sense.
It was a bullet. It was a small slug of adamantium, the toughest and hardest of all metals, crammed to capacity with the terrific explosive feroxite and would burst instantly on any reasonable heavy impact.
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