6
forceful(adjective, strong, great, sound, tough)
6
full(adjective, enthusiastic, vigorous, sincere, wholehearted)
6
lively(adjective, strong, tough, fit, energetic)
6
peppy(adjective, strong, tough, fit, energetic)
6
pink
6
red-blooded(adjective, strong, tough, intense, energetic)
6
staunch(noun, adjective, health, strong, sound)
6
virile(adjective, strong, tough, powerful, vigorous)
6
well-built(adjective, person, body, strong, sound)
6
boisterous(adjective, strong, tough, fit, rude)
6
concentrated(adjective, strong, hard, sharp, fit)
6
flourishing(adjective, strong, great, sound, tough)
6
flush(noun, health)
6
forcible(adjective, strong, sound, strength, tough)
6
in fine fettle(expression, adjective, idiom, strong, sound)
6
iron(adjective, strong, hard, tough, inflexible)
6
proof
6
rough(adjective, strong, hard, simple, tough)
6
salubrious(adjective, healthy)
6
spry(adjective, strong, lively, active, vigorous)
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APASmart Define. (2016). robust thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/robust/thesaurus/synonyms
ChicagoSmart Define. 2016. "robust thesaurus" https://smartdefine.org/robust/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, robust thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/robust/thesaurus/synonyms>.
MLASmart Define. "robust thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/robust/thesaurus/synonyms>