114 entries under strong topic. ×

64
stable(adjective, sound, secure, tough)
61
firm(noun, adjective, calm, sound)
49
sound(adjective, calm, secure, tough)
44
hard(adjective, strain, firm, stiff)
42
stiff(adjective, strain, firm, solid)
37
substantial(adjective, calm, sound, secure)
37
unfluctuating(adjective, calm, secure, strain)
36
enduring(adjective, calm, sound, secure)
35
stout(adjective, calm, sound, secure)
33
constant(adjective, calm, secure, tough)
29
fast(adjective, calm, secure, tough)
29
steady(adjective, calm, sound, secure)
28
sturdy(adjective, calm, sound, secure)
25
steadfast(adjective, calm, secure, strain)
23
robust(adjective, sound, secure, tough)
22
tough(verb, adjective, calm, sound)
22
rigid(adjective, strain, firm, stiff)
22
unyielding(adjective, sound, tough, strain)
20
settled(adjective, secure, strain, firm)
19
stabile(adjective, calm, secure, strain)
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APASmart Define. (2015). durable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/durable/thesaurus/synonyms
ChicagoSmart Define. 2015. "durable thesaurus" https://smartdefine.org/durable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, durable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/durable/thesaurus/synonyms>.
MLASmart Define. "durable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/durable/thesaurus/synonyms>