αδαμάντινος

Etymology
and <  <.

Adjective

 * 1) made of diamond
 * 2) adamantine
 * 3)  adamant, firm, unflinching
 * 1)  adamant, firm, unflinching

Related terms
and see
 * the formal /  for stem αδαμαντ-
 * for stem διαμαντ-