114 entries under solid topic. ×

9
fixed(adjective, strong, sound, secure, tough)
8
well-built(adjective, calm, strong, sound, secure)
8
dependable(adjective, strong, tough, firm)
8
hardy(adjective, strong, hard, sound, tough)
7
vigorous(adjective, strong, sound, tough)
6
changeless(adjective, set, firm, stable)
6
hale(adjective, strong, sound, tough)
6
immutable(adjective, calm, strong, steady)
6
reliable(adjective, calm, strong, secure, tough)
6
stalwart(adjective, calm, strong, sound, secure)
6
tenacious(adjective, strong, sound, secure, tough)
6
unchangeable(adjective, calm, strong, secure, firm)
5
hearty(adjective, strong, sound, tough)
5
unchanging(adjective, set, firm, steady)
5
well-made(adjective, strong, sound, tough)
4
able-bodied(adjective, strong, sound, tough)
4
set(verb, adjective, calm, strong, secure)
3
heavy-duty(adjective, strong, sound, tough)
3
immovable(adjective, strong, secure, firm)
3
staunch(adjective, calm, strong, sound, secure)
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APASmart Define. (2015). durable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/durable/thesaurus/synonyms
ChicagoSmart Define. 2015. "durable thesaurus" https://smartdefine.org/durable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, durable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/durable/thesaurus/synonyms>.
MLASmart Define. "durable thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/durable/thesaurus/synonyms>