The Open Dictionary

steadfast

adjective

UK/ˈsted.fɑːst/
US/ˈsted.fæst/

Definitions of steadfast adjective

  1. Firmly fixed in place; not subject to change or wavering.

    • a steadfast friend/ally

    • unwavering steadfast loyalty

    • The organization maintained a steadfast position, endorsing the new policies despite the media scrutiny.