19 entries under perpetual topic. ×

3
old(adjective, permanent, recurrent, long-term)
3
perennial(adjective, enduring, permanent, recurrent)
2
lasting(adjective, vast, permanent, recurrent)
1
abiding(permanent, recurrent, long-term, lifelong)
1
constant(permanent, recurrent, long-term, lifelong)
1
continual(permanent, recurrent, long-term, lifelong)
1
continuing(fundamental, permanent, operating, recurrent)
1
durable(permanent, recurrent, long-term, lifelong)
1
enduring(permanent, recurrent, long-term, lifelong)
1
eternal(vast, permanent, recurrent, long-term)
1
everlasting(vast, permanent, recurrent, long-term)
1
incessant(permanent, recurrent, long-term, lifelong)
1
lifelong(adjective, permanent, recurrent, long-term)
1
long-lasting(permanent, recurrent, long-term, lifelong)
1
perdurable(fundamental, permanent, continuing, operating, recurrent)
1
permanent(vast, recurrent, long-term, lifelong)
1
unceasing(permanent, recurrent, long-term, lifelong)
1
undying(permanent, recurrent, long-term, lifelong)
0
unchanging(permanent, recurrent, long-term, lifelong)
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APASmart Define. (2013). longstanding thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/longstanding/thesaurus/synonyms
ChicagoSmart Define. 2013. "longstanding thesaurus" https://smartdefine.org/longstanding/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, longstanding thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/longstanding/thesaurus/synonyms>.
MLASmart Define. "longstanding thesaurus" 27 June 2013. Web. 27 September 2026. <https://smartdefine.org/longstanding/thesaurus/synonyms>