unfaltering[adjective]Synonyms: sure, abiding, enduring, firm, never-failing, steadfast, steady, unqualified, unquestioning, wholehearted
[TahlilGaran] English Synonym Dictionary ▲
un‧fal‧ter‧ing /ʌnˈfɔːlt
ərɪŋ $ -ˈfɒːl-/
adjective formal strong, determined, and not becoming weaker:
unfaltering confidence [TahlilGaran] Dictionary of Contemporary English ▲