81 entries under fixed topic. ×

4
set(verb, adjective, calm, strong, secure)
3
immovable(adjective, strong, secure, firm, solid)
3
staunch(adjective, calm, strong, sound, secure)
2
faithful(firm, true, constant, steadfast)
2
intense(adjective, firm, solid, stable)
2
secure(adjective, calm, strong, sound, tough)
2
set in stone(expression, adjective, idiom, calm, strong)
2
solid as a rock(expression, adjective, idiom, calm, strong)
2
sure(adjective, calm, strong, secure, firm)
2
unvarying(adjective, calm, strong, secure, firm)
1
ardent(adjective, firm, solid, true, stable)
1
balanced(adjective, calm, strong, secure, firm)
1
brick-wall(adjective, calm, strong, secure, firm)
1
calm(adjective, strong, secure, firm, solid)
1
equable(adjective, calm, strong, secure, firm)
1
even(adjective, calm, strong, secure, firm)
1
fastened(strong, secure, firm, true, substantial)
1
indelible(adjective, firm, true, constant)
1
loyal(adjective, firm, solid, true, stable)
1
poised(adjective, calm, strong, secure, firm)
11 years ago|28k views|share |citing 
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>