Meaning : Consisting of or having the hardness of adamant.
Meaning : Having the hardness of a diamond.
Meaning : Impervious to pleas, persuasion, requests, reason.
Example :
He is adamant in his refusal to change his mind.
Cynthia was inexorable; she would have none of him.
An intransigent conservative opposed to every liberal tendency.
Synonyms : adamant, inexorable, intransigent