See steadfast in Webster's New World Roget's A-Z Thesaurus II
adjective
Firmly in position:
fixed, immobile, immovable, stationary, steady, unmovable, unmoving. See moveConsistently reliable, especially because of resistance to outside pressures:
stable, steady, steady-going. See continueIndicating or possessing determination, resolution, or persistence:
constant, determined, firm1, resolute, steady, stiff, tough, unbending, uncompromising, unflinching, unwavering, unyielding. See purposeAdhering firmly and devotedly, as to a person, a cause, or a duty:
allegiant, constant, faithful, fast, firm1, liege, loyal, staunch, true. See continue, trust
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