3
inflexibly
3
inveterately
3
lastingly(adverb, continuously, permanently)
3
loyally(adverb, resolutely)
3
patiently
3
perennially(adverb, continuously)
3
purposefully(adverb, vigorously, earnestly, hastily, carefully)
3
stably(adverb, stably)
3
toughly(adverb, resolutely, tenaciously)
3
unfalteringly(adverb, resolutely, determinedly, unwaveringly)
3
unwaveringly(adverb, resolutely, determinedly, obstinately, stubbornly)
3
zealously(adverb, vigorously, earnestly, actively, hastily)
2
boldly(adverb, resolutely, tenaciously)
2
courageously(adverb, resolutely, tenaciously)
2
dauntlessly(adverb, resolutely, tenaciously)
2
durably(adverb, stably)
2
enthusiastically(adverb, vigorously, earnestly, actively, hastily)
2
intensively(adverb, thoroughly, closely, meticulously, determinedly)
2
invariably(adverb, continuously, stably)
2
painstakingly(adverb, thoroughly, seriously, vigorously, closely)
11 years ago|5.5k views|share |citing 
APASmart Define. (2015). persistently thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/persistently/thesaurus/synonyms
ChicagoSmart Define. 2015. "persistently thesaurus" https://smartdefine.org/persistently/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, persistently thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/persistently/thesaurus/synonyms>.
MLASmart Define. "persistently thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/persistently/thesaurus/synonyms>