(said of people and their conviction) Firm; unshakeable; unyielding; determined. / (of an object) Very difficult to break, pierce, or cut.

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. / (obsolete) A lodestone.

Adamic

(Abrahamic religions) The first man and the progenitor of the human race. / A male given name from Hebrew. / (figuratively) Original sin or human frailty.

A surname originating as a patronymic derived from Adam. / An unincorporated community in Lake County, California. / Former name of Corte Madera, California.

plural of Adam

Of, relating to, or resembling the Biblical character Adam.

plural of adamant

The quality of being adamant

The property of being adamant.