Synonyms|570Antonyms|86|Broader|6Narrower|6Related|504
2
immutable(adjective, persistent, continuous, endless, relentless)
2
inborn(adjective, fixed, persistent, continuous, lasting)
2
ineradicable(adjective, set, fixed, persistent, hardened)
2
instilled
2
intransient
2
longeval
2
macrobiotic
2
nagging
2
of long duration(expression, idiom, diuturnity)
2
orthodox(adjective, usual, regular, normal, accepted)
2
perdurable(adjective, continuing)
2
predictable(normal, customary, typical)
2
remaining(persistent, current, lasting, ongoing)
2
repeated
2
sempervirent
2
standard(adjective, common, natural, usual, regular)
2
staying
2
steadfast(adjective, persistent, continuous, endless, relentless)
2
stock(adjective, common, natural, regular, normal)
2
timeless
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APASmart Define. (2016). chronic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/chronic/thesaurus/synonyms
ChicagoSmart Define. 2016. "chronic thesaurus" https://smartdefine.org/chronic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, chronic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/chronic/thesaurus/synonyms>.
MLASmart Define. "chronic thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/chronic/thesaurus/synonyms>