adamant
1ad·a·mant
noun \ˈa-də-mənt, -ˌmant\Definition of ADAMANT
1
: a stone (as a diamond) formerly believed to be of impenetrable hardness
2
: an unbreakable or extremely hard substance
Origin of ADAMANT
Middle English, from Anglo-French, from Latin adamant-, adamas hardest metal, diamond, from Greek
First Known Use: 14th century
Rhymes with ADAMANT
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