170 entries under vigorous topic. ×

4
zippy(adjective, strong, tough, fit, energetic)
3
hale and hearty(expression, adjective, idiom, strong, tough)
3
sprightly(adjective, strong, lively, active)
2
deep(adjective, enthusiastic, sincere, wholehearted)
2
eager(adjective, enthusiastic, sincere, wholehearted)
2
effective(adjective, strong, hard, tough, sharp)
2
exuberant(adjective, strong, tough, intense, energetic)
2
filling(adjective, enthusiastic, sincere, wholehearted)
2
glowing(adjective, sound, fit, enthusiastic)
2
nourishing(adjective, enthusiastic, sincere, wholehearted)
2
powerfully built(expression, adjective, person, body, strong)
2
sizable(adjective, enthusiastic, large, sincere)
2
spanking(adjective, strong, great, tough, energetic)
2
tenacious(adjective, strong, sound, secure, tough)
1
able(adjective, strong, sound, tough, fit)
1
audacious(noble, courageous)
1
authoritarian(adjective, strong, hard, tough, energetic)
1
ball of fire(expression, adjective, idiom, strong, great)
1
beefcake(strong, noble, courageous, muscular)
1
bold(hard, sharp, determined, noble)
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APASmart Define. (2016). robust thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/robust/thesaurus/synonyms
ChicagoSmart Define. 2016. "robust thesaurus" https://smartdefine.org/robust/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, robust thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/robust/thesaurus/synonyms>.
MLASmart Define. "robust thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/robust/thesaurus/synonyms>