54 entries under strong topic. ×

12
durable(adjective, calm, tough, continue)
12
lasting(adjective, calm, tough, continue)
10
enduring(adjective, calm, continue, substantial)
9
indestructible(adjective, tough, stable, constant)
8
permanent(adjective, calm, continue, sturdy)
7
abiding(adjective, calm, continue, substantial)
6
everlasting(adjective, stable, constant, enduring)
5
constant(adjective, calm, substantial, stable)
3
tough(adjective, calm, solid, steady)
2
immutable(calm, solid, substantial, constant)
2
steadfast(calm, solid, steady, stable)
2
steady(calm, even, constant, unchanging)
2
unbreakable(adjective, tough)
1
anchored(calm, solid, steady, substantial)
1
balanced(calm, solid, steady, substantial)
1
brick-wall(calm, solid, steady, substantial)
1
calm(solid, steady, substantial, even)
1
deep-rooted(calm, solid, steady, substantial)
1
equable(calm, solid, steady, substantial)
1
even(calm, solid, steady, substantial)
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APASmart Define. (2016). perdurable thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/perdurable/thesaurus/synonyms
ChicagoSmart Define. 2016. "perdurable thesaurus" https://smartdefine.org/perdurable/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, perdurable thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/perdurable/thesaurus/synonyms>.
MLASmart Define. "perdurable thesaurus" 3 March 2016. Web. 22 September 2026. <https://smartdefine.org/perdurable/thesaurus/synonyms>