127 entries under tough topic. ×

16
vital(adjective, good, clear, strong, sound)
16
stalwart(adjective, strong, great, sound)
16
stout(adjective, strong, great, sound, strength)
14
strenuous(adjective, action, strong, smart)
13
fit(adjective, strong, great, sound, complete)
12
forcible(adjective, strong, sound, strength)
12
well(adjective, health, person, strong, sound)
11
able-bodied(adjective, strong, great, sound)
11
athletic(adjective, person, strong, sound)
11
muscular(adjective, strong, great, sound)
11
puissant(adjective, strong, great, sound, strength)
11
rugged(adjective, strong, sound, fit)
11
strapping(adjective, strong, great, sound)
11
zippy(adjective, action, strong, moving)
10
brawny(adjective, strong, healthy, sturdy)
10
husky(adjective, strong, great, right)
10
sinewy(adjective, strong, sound, solid)
9
enterprising(adjective, action, strong, keen)
9
indefatigable(adjective, strong, sound, fit)
9
snappy(adjective, action, strong, moving)
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APASmart Define. (2016). vigorous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/vigorous/thesaurus/synonyms
ChicagoSmart Define. 2016. "vigorous thesaurus" https://smartdefine.org/vigorous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, vigorous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/vigorous/thesaurus/synonyms>.
MLASmart Define. "vigorous thesaurus" 1 April 2016. Web. 28 September 2026. <https://smartdefine.org/vigorous/thesaurus/synonyms>