45 entries under perpetual topic. ×

1
long-lived(persistent, continuous, lasting, continuing, recurrent)
1
longstanding(permanent, recurrent, long-term, lifelong)
1
old(permanent, unremitting, recurrent, long-term)
1
perduring(stable, constant, enduring, lasting, durable)
0
set in concrete(expression, stable, constant, enduring, lasting)
<123>
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APASmart Define. (2016). continual thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/continual/thesaurus/synonyms
ChicagoSmart Define. 2016. "continual thesaurus" https://smartdefine.org/continual/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, continual thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/continual/thesaurus/synonyms>.
MLASmart Define. "continual thesaurus" 12 February 2016. Web. 28 September 2026. <https://smartdefine.org/continual/thesaurus/synonyms>