Synonyms of steadfast

Adjective

1. firm, steadfast, steady, stiff, unbendable, unfaltering, unshakable, unwavering, resolute (vs. irresolute)

usage: marked by firm determination or resolution; not shakable; "firm convictions"; "a firm mouth"; "steadfast resolve"; "a man of unbendable perseverence"; "unwavering loyalty"

2. steadfast, staunch, unswerving, constant (vs. inconstant)

usage: firm and dependable especially in loyalty; "a steadfast ally"; "a staunch defender of free speech"; "unswerving devotion"; "unswerving allegiance"

Definition and meaning of steadfast (Dictionary)