unswerving

unswerving allegiance; unswerving devotion.

He had an unswerving devotion to duty.

The general had an unswerving devotion to duty.

He showed unswerving loyalty to his friends.

Even today, the Confucian principle of unswerving loyalty to one's parents remains hallowed.

They're the gyroscope that stabilizes the rocket plane of state on its unswerving course.

The sun rose higher on its journey, guided, not by Phaethon, but by Apollo, competent, unswerving, divine.

But Francois, chuckling at the incident while unswerving in the administration of justice, brought his lash down upon Buck with all his might.

I will establish his kingdom forever if he is unswerving in carrying out my commands and laws, as is being done at this time'.