unyielding: المعنى والتعريفات

Not giving way to pressure; hard or inflexible:"She lay on the unyielding concrete of the steps"(T. Coraghessan Boyle).

Incapable of being changed; unalterable:"the unyielding grip of war"(James Carroll).

Not willing to change or be persuaded; resolute: an unyielding champion of civil rights.