adamant

Meanings

Adjective

• firm; unshakeable; unyielding; determined.
• Very difficult to break, pierce, or cut.

Noun

• An imaginary rock or mineral of impenetrable hardness; a name given to the diamond and other substances of extreme hardness.
• An embodiment of impregnable hardness.
• A lodestone.

Origin

• From Middle English adamant, adamaunt, from Latin adamantem, accusative singular form of adamās, from Ancient Greek ἀδάμας ("invincible"), from ἀ- + δαμάζω or of Semitic origin.