157 entries under tough topic. ×

3
well-founded(adjective, good, strong, great, sound)
2
boisterous(adjective, strong, severe, intense)
2
booming(adjective, strong, vigorous, deep)
2
bouncing(adjective, strong, energetic, lively)
2
built(adjective, strong, fit, intense)
2
equal to(verb, expression, phrasal verb, power)
2
hard as nails(expression, adjective, idiom, strong, sound)
2
in fine fettle(expression, adjective, idiom, strong)
2
powerhouse(adjective, strong, great, direct)
1
accomplished(keen, smart, intelligent, competent)
1
adept(competent, capable, effective, proficient)
1
apt(competent, capable, effective, forceful)
1
ball of fire(expression, adjective, idiom, strong)
1
concentrated(adjective, strong, sharp, intense)
1
dangerous(adjective, strong, severe, intense)
1
dashing(adjective, strong, energetic, lively)
1
decisive(strong, important, effective, forceful)
1
deft(keen, smart, intelligent, competent)
1
durable(adjective, strong, sound, solid)
1
enduring(adjective, strong, sound, fit)
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APASmart Define. (2015). powerful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/powerful/thesaurus/synonyms
ChicagoSmart Define. 2015. "powerful thesaurus" https://smartdefine.org/powerful/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, powerful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/powerful/thesaurus/synonyms>.
MLASmart Define. "powerful thesaurus" 30 November 2015. Web. 28 September 2026. <https://smartdefine.org/powerful/thesaurus/synonyms>