127 entries under tough topic. ×

2
unimpaired(strong, complete, fit, clean)
2
well-built(adjective, strong, sound, solid)
2
whole(health, strong, great, right)
1
assertive(adjective, smart, energetic, violent)
1
assertory(adjective, smart, energetic, aggressive)
1
big(adjective, strong, sound, solid)
1
boisterous(adjective, strong, fit, energetic)
1
brassy(adjective, smart, energetic, forceful)
1
built(strong, fit, healthy, well)
1
capable(adjective, strong, sound, sharp)
1
cheeky(adjective, smart, energetic, forceful)
1
cocky(adjective, smart, energetic, forceful)
1
come on(expression, adjective, smart, energetic)
1
concentrated(adjective, strong, fit, intense)
1
domineering(adjective, smart, energetic, forceful)
1
enduring(adjective, strong, sound, fit)
1
fit as fiddle(expression, idiom, strong, fit)
1
fixed(adjective, strong, sound, solid)
1
flip(adjective, smart, energetic, forceful)
1
get up and go(expression, adjective, idiom, smart)
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APASmart Define. (2016). vigorous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms
ChicagoSmart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, vigorous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>.
MLASmart Define. "vigorous thesaurus" 1 April 2016. Web. 29 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms>