66 entries under fixed topic. ×

34
firm(noun, adjective, calm, strong, hard)
28
solid(adjective, calm, person, body, strong)
24
substantial(adjective, calm, strong, hard, sound)
22
sound(noun, adjective, calm, strong, hard)
19
durable(adjective, calm, strong, sound, secure)
16
stable(adjective, strong, hard, sound, complete)
13
staunch(noun, adjective, calm, strong, sound)
9
secure(verb, adjective, calm, strong, hard)
9
steadfast(adjective, calm, strong, tough, firm)
9
steady(adjective, calm, strong, sound, tough)
8
resolute(adjective, calm, strong, tough, firm)
7
fast(adjective, calm, strong, tough, firm)
7
unswerving(adjective, strong, tough, firm, solid)
7
unwavering(adjective, calm, strong, secure, firm)
5
dependable(adjective, strong, tough, firm, solid)
5
enduring(adjective, calm, strong, sound, secure)
5
unfaltering(adjective, firm, solid, determined, stable)
3
reliable(adjective, calm, strong, secure, tough)
3
sure(adjective, calm, strong, tough, continue)
2
cool(adjective, firm, solid, stable)
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APASmart Define. (2016). sturdy thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sturdy/thesaurus/synonyms
ChicagoSmart Define. 2016. "sturdy thesaurus" https://smartdefine.org/sturdy/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, sturdy thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sturdy/thesaurus/synonyms>.
MLASmart Define. "sturdy thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/sturdy/thesaurus/synonyms>