188 entries under vigorous topic. ×

14
puissant(adjective, clear, great, sound, tough)
13
fresh(adjective, power, sound, strength, tough)
13
persuasive(adjective, good, clear, sound, tough)
12
telling(adjective, clear, open, sound, reasonable)
12
vehement(adjective, severe, difficult, intense, energetic)
11
compelling(adjective, clear, sound, reasonable, energetic)
11
convincing(adjective, clear, sound, reasonable, energetic)
11
fervent(adjective, difficult, intense, passionate, violent)
11
passionate(adjective, open, severe, intense, violent)
11
well(adjective, person, sound, tough, right)
10
fit(adjective, sound, strength, tough, right)
10
capable(adjective, good, great, sound, tough)
10
cogent(adjective, clear, sound, reasonable, energetic)
10
competent(adjective, good, great, ability, energetic)
10
eager(adjective, difficult, intense, energetic, passionate)
10
emphatic(adjective, open, intense, big, passionate)
10
weighty(adjective, good, clear, sound, right)
10
zealous(adjective, tough, difficult, intense, energetic)
9
good(adjective, great, sound, strength, right)
9
virile(adjective, tough, fit, fine, energetic)
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APASmart Define. (2016). strong thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/strong/thesaurus/synonyms
ChicagoSmart Define. 2016. "strong thesaurus" https://smartdefine.org/strong/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, strong thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/strong/thesaurus/synonyms>.
MLASmart Define. "strong thesaurus" 1 April 2016. Web. 26 September 2026. <https://smartdefine.org/strong/thesaurus/synonyms>