steadfast (adjective) steadfast: loyal, steady
Sinonime: abiding,
adamant, allegiant,
ardent,
bound, changeless,
constant,
dedicated,
dependable,
enduring,
established,
faithful,
fast,
firm,
fixed, immobile, immovable,
inexorable,
inflexible,
intense,
intent, liege, never-failing,
obdurate,
persevering,
relentless,
reliable,
resolute,
rigid, single-minded,
stable,
staunch,
stubborn,
sure, tried-and-true,
true, true-blue, unbending, unfaltering, unflinching, unmovable, unqualified, unquestioning, unswerving,
unwavering,
unyielding, wholehearted
Antonime: disloyal,
unreliable,
untrustworthy