steadfastly
Definitions
In a firm, unwavering, or fixed manner.
With dedicated, loyal, or resolute purpose.
Examples
She steadfastly refused to compromise her principles despite the intense pressure from her colleagues.
The soldiers stood steadfastly at their posts throughout the long and freezing night.
Synonyms
resolutely firmly unwaveringly tenaciously staunchly persistently determinedly
Antonyms
hesitantly waveringly indecisively ficklely irresolutely unsteadily vacillatingly