unfaltering
adjective
[ ʌnˈfɔːlt(ə)rɪŋ ]
• not faltering; steady; resolute.
• "her unfaltering energy and determination"
Similar:
steady,
resolute,
resolved,
firm,
steadfast,
fixed,
decided,
unswerving,
unfluctuating,
unhesitating,
unwavering,
unvacillating,
untiring,
tireless,
unflagging,
indefatigable,
persistent,
unyielding,
relentless,
unremitting,
unrelenting,
sustained,
inexorable,
unshakeable,