50 entries under sound topic. ×

1
able(adjective, strong, tough, fit)
1
capable(adjective, strong, tough, fit)
1
fixed(adjective, strong, tough, solid)
1
heavy-duty(adjective, strong, tough, solid)
1
in fine feather(expression, adjective, idiom, strong)
1
reinforced(adjective, strong, tough, solid)
1
secure(adjective, calm, strong, tough)
1
stark(adjective, strong, tough, solid)
1
well-founded(adjective, calm, strong, secure)
1
well-made(adjective, strong, tough, solid)
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APASmart Define. (2016). stalwart thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/stalwart/thesaurus/synonyms
ChicagoSmart Define. 2016. "stalwart thesaurus" https://smartdefine.org/stalwart/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2016, stalwart thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/stalwart/thesaurus/synonyms>.
MLASmart Define. "stalwart thesaurus" 23 March 2016. Web. 1 October 2026. <https://smartdefine.org/stalwart/thesaurus/synonyms>