99 entries under persistent topic. ×

1
ineradicable(fixed, continuous, lasting, continuing)
1
ingrained(usual, fixed, established, hardened)
1
intransigent(adjective, constant, pitiless, unyielding)
1
iron-fisted(adjective, constant, pitiless, unyielding)
1
lifelong(adjective, fixed, continuous, lasting)
1
like the Rock of Gibralter(expression, adjective, idiom, steady, stable)
1
lingering(fixed, lasting, remaining, chronic)
1
long-lived(continuous, lasting, continuing, recurrent)
1
long-standing(continuous, lasting, continuing, remaining)
1
merciless(adjective, constant, pitiless, unyielding)
1
monochrome(adjective, dull, steady, stable, regular)
1
monophonic(adjective, dull, steady, stable, regular)
1
neverending(adjective, resolute, constant, living)
1
obstinate(determined, continuous, lasting, continuing)
1
of a piece(expression, adjective, idiom, steady, stable)
1
prolonged(adjective, constant, lasting, remaining)
1
protracted(continuous, lasting, continuing, remaining)
1
regularized(adjective, dull, steady, stable, regular)
1
remorseless(adjective, constant, pitiless, unyielding)
1
rooted(usual, continuous, established, hardened)
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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>