Synonyms|718Antonyms|124|Broader|10Narrower|0Related|388
2
homogeneous(adjective, dull, steady, stable, regular)
2
illimited
2
incorruptible(adjective, honest, moral, honorable, principled)
2
indefatigable(adjective, continuous)
2
intact
2
interminate(continuous, endless, infinite, boundless, incessant)
2
invariant
2
just(moral, principled)
2
lifetime(adjective, durable)
2
long-drawn-out(adjective, endless, incessant, ceaseless)
2
longeval
2
machine gun
2
majestic
2
no end of(expression, idiom, constant, endless, infinite)
2
of long duration(expression, idiom, diuturnity)
2
of long standing(expression, idiom, familiar, established, long-established)
2
overlong(constant, abundant, unrestrained, endless, immense)
2
perduring(stable, constant, enduring, lasting, durable)
2
recurring(adjective, regular, normal, continuous, lasting)
2
remaining
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APASmart Define. (2016). perpetual thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/perpetual/thesaurus/synonyms
ChicagoSmart Define. 2016. "perpetual thesaurus" https://smartdefine.org/perpetual/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, perpetual thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/perpetual/thesaurus/synonyms>.
MLASmart Define. "perpetual thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/perpetual/thesaurus/synonyms>