203 entries under solid topic. ×

4
impeccable(adjective, strong, reasonable, perfect)
4
intense(adjective, strong, tough, firm)
4
persuasive(adjective, clear, strong, direct, tough)
4
predictable(adjective, strong, steady, consistent)
4
respectable(adjective, good, strong, right, honest)
4
set(adjective, calm, clear, strong, hard)
4
sizable(adjective, strong, big, important)
4
unshakable(adjective, strong, hard, secure, continue)
4
well-made(adjective, strong, tough, heavy)
3
athletic(adjective, strong, tough, fit)
3
forceful(adjective, clear, strong, direct, tough)
3
hefty(adjective, strong, hard, tough, fit)
3
impressive(reasonable, important, powerful, realistic)
3
lusty(adjective, strong, tough, fit)
3
muscular(adjective, strong, tough, fit)
3
serious(adjective, calm, strong, honest)
3
strapping(adjective, strong, tough, right, fit)
3
unspoiled(adjective, clean, perfect, pure)
3
upright(adjective, strong, honest, true)
2
able(adjective, strong, direct, tough, easy)
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APASmart Define. (2016). sound thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/sound/thesaurus/synonyms
ChicagoSmart Define. 2016. "sound thesaurus" https://smartdefine.org/sound/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, sound thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/sound/thesaurus/synonyms>.
MLASmart Define. "sound thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/sound/thesaurus/synonyms>