1
ingrained(usual, fixed, persistent, established, hardened)
1
intransigent(adjective, persistent, constant, pitiless, unyielding)
1
iron-fisted(adjective, persistent, constant, pitiless, unyielding)
1
joined
1
jointless
1
lifelong(adjective, fixed, persistent, continuous, lasting)
1
like bad penny
1
like the Rock of Gibralter(expression, adjective, idiom, steady, stable)
1
limitless(constant, abundant, unrestrained, endless, immense)
1
lingering(fixed, persistent, lasting, remaining, chronic)
1
linked
1
locust
1
long-lasting(stable, constant, enduring, lasting, permanent)
1
long-lived(persistent, continuous, lasting, continuing, recurrent)
1
long-standing(persistent, continuous, lasting, continuing, remaining)
1
long-term(permanent, lifelong)
1
longstanding(permanent, recurrent, perpetual, long-term, lifelong)
1
low
1
machine gun
1
many(adjective, regular, normal, recurrent)
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APASmart Define. (2016). continual thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/continual/thesaurus/synonyms
ChicagoSmart Define. 2016. "continual thesaurus" https://smartdefine.org/continual/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, continual thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/continual/thesaurus/synonyms>.
MLASmart Define. "continual thesaurus" 12 February 2016. Web. 22 September 2026. <https://smartdefine.org/continual/thesaurus/synonyms>