93 entries under solid topic. ×

11
tenacious(adjective, strong, sound, tough, fit)
10
hefty(adjective, person, body, strong)
10
mighty(adjective, person, body, strong, great)
9
able-bodied(adjective, person, body, strong, sound)
8
determined(adjective, strong, firm, intense)
8
sinewy(adjective, strong, hard, sound, strength)
8
substantial(adjective, calm, strong, sound, secure)
7
healthy(adjective, strong, hard, sound, tough)
6
durable(adjective, calm, strong, sound, secure)
6
sound(adjective, calm, strong, tough, fit)
6
unwavering(adjective, calm, strong, secure, firm)
6
unyielding(adjective, strong, hard, sound, tough)
5
forceful(adjective, strong, great, sound, tough)
5
stable(adjective, strong, sound, tough, firm)
4
energetic(adjective, strong, sound, tough)
4
fast(adjective, calm, strong, tough, firm)
3
constant(adjective, calm, strong, secure, firm)
3
fresh(adjective, strong, moving, tough, fit)
3
indefatigable(adjective, strong, sound, tough, fit)
3
reliable(adjective, calm, strong, secure, firm)
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APASmart Define. (2016). stalwart thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/stalwart/thesaurus/synonyms
ChicagoSmart Define. 2016. "stalwart thesaurus" https://smartdefine.org/stalwart/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, stalwart thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/stalwart/thesaurus/synonyms>.
MLASmart Define. "stalwart thesaurus" 23 March 2016. Web. 26 September 2026. <https://smartdefine.org/stalwart/thesaurus/synonyms>