27 entries under constant topic. ×

10
permanent(adjective, tough, continue, sturdy)
8
enduring(adjective, tough, continue, familiar, sturdy)
8
lasting(adjective, tough, continue, sturdy)
8
perennial(adjective, continue, familiar, enduring)
8
persistent(adjective, tough, continue, sturdy)
5
indestructible(adjective, tough, stable, sturdy)
5
stable(adjective, tough, sturdy, enduring)
4
immutable(adjective, stable, enduring, lasting)
4
steadfast(adjective, stable, enduring, lasting)
3
everlasting(adjective, stable, enduring, lasting)
3
fixed(adjective, tough, stable, sturdy)
3
perpetual(adjective, familiar, stable, established)
2
forever(stable, enduring, lasting, permanent)
2
imperishable(adjective, stable, enduring, lasting)
2
perduring(tough, stable, sturdy, enduring)
2
unchanging(adjective, stable, enduring, lasting)
2
unfading(stable, enduring, lasting, durable)
1
changeless(adjective, stable, enduring, lasting)
1
continual(adjective, stable, enduring, lasting)
1
diurnal(stable, enduring, lasting, durable)
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APASmart Define. (2015). long-lasting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/long-lasting/thesaurus/synonyms
ChicagoSmart Define. 2015. "long-lasting thesaurus" https://smartdefine.org/long-lasting/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, long-lasting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/long-lasting/thesaurus/synonyms>.
MLASmart Define. "long-lasting thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/long-lasting/thesaurus/synonyms>