3
protracted(adjective, continue, persistent, continuous, lasting)
3
protracting(verb, increase, line, extension, persistence)
3
pursuing
3
relentless(adjective, endless, unrelenting, continual, perpetual)
3
repeated(adjective, regular, continuous, established, permanent)
3
repetitive(adjective, continuous)
3
seamless(adjective, continuous)
3
stable(adjective, fixed, unaffected, lasting, permanent)
3
steadfast
3
subsisting(verb, adjective, active, alive, operative)
3
tireless(adjective, strong, firm, determined, steady)
3
unchanged(adjective, fixed, unaffected, static, unvarying)
3
unrelenting(certain, reliable, trustworthy, endless, boundless)
2
advancing(adjective, constant, current, tolerant, modern)
2
aged
2
ageless(fixed, static, unchangeable)
2
assiduous
2
at different times
2
bearing(noun, verb, strength, ability, resolution)
2
changeless(fixed, static, unvarying, unchangeable, unalterable)
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APASmart Define. (2016). continuing thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/continuing/thesaurus/synonyms
ChicagoSmart Define. 2016. "continuing thesaurus" https://smartdefine.org/continuing/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, continuing thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/continuing/thesaurus/synonyms>.
MLASmart Define. "continuing thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/continuing/thesaurus/synonyms>