Stēad'/fāst, a.
a. [From stead and fast, i. e., fast in place; A-S. stedfast.] [Formerly written also stedfast.]
Sense 1. Firmly fixed or established; fast fixed; firm. “This steadfast globe of earth.” Spencer.
Sense 2. Not fickle or wavering; constant; firm; resolute.
Abide steadfast to him [thy neighbor] in time of his trouble. Ecclus. xxii. 23.
Whom resist, steadfast in the faith. 1 Pet. v. 9.