adjective
1.
Synonyms: immovable 1, fixed, immobile, immotile, immotive, irremovable, ||sitfast, unmovable
2.
Synonyms: inflexible 2, adamant, inexorable, obdurate, relentless, rigid, single-minded, stubborn, unbending, unyielding
Antonyms: unsteadfast, vacillating
3.
Synonyms: sure 2, abiding, enduring, firm, never-failing, steady, unfaltering, unqualified, unquestioning, wholehearted
Antonyms: capricious
4.
Synonyms: faithful 1, allegiant, ardent, constant, fast, liege, loyal, resolute, staunch, true
Related Word: unfaltering, unflinching, unquestioning, unwavering