92 entries under stable topic. ×

5
sturdy(adjective, calm, strong, sound, secure)
4
sure(adjective, calm, close, strong, complete)
4
unfading(fixed, constant, lasting, durable)
4
unremitting(adjective, determined, steady, resolute)
4
unswerving(adjective, close, set, correct, firm)
3
loyal(adjective, close, correct, firm, honest)
3
set(adjective, calm, strong, secure, flat)
3
single-minded(adjective, firm, solid, determined, steady)
3
solid(adjective, calm, strong, sound, tough)
3
wholehearted(adjective, set, complete, firm, total)
2
dependable(adjective, close, strong, tough, correct)
2
never-failing(adjective, strong, complete, flat, firm)
2
perduring(tough, sturdy, constant, lasting)
2
reliable(adjective, calm, close, strong, secure)
2
unquestioning(adjective, set, clear, complete, warm)
1
allegiant(adjective, close, correct, firm, honest)
1
ardent(adjective, close, correct, warm, firm)
1
balanced(adjective, calm, strong, secure, firm)
1
brick-wall(adjective, calm, strong, secure, firm)
1
calm(adjective, quiet, strong, cool, secure)
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APASmart Define. (2016). enduring thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/enduring/thesaurus/synonyms
ChicagoSmart Define. 2016. "enduring thesaurus" https://smartdefine.org/enduring/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, enduring thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/enduring/thesaurus/synonyms>.
MLASmart Define. "enduring thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/enduring/thesaurus/synonyms>