67 entries under tough topic. ×

1
mettlesome(adjective, strong, intense, energetic)
1
peppy(adjective, strong, energetic, powerful)
1
plenty(complete, exact, full, conscientious)
1
red-blooded(adjective, strong, intense, energetic)
1
royal(complete, exact, full, conscientious)
1
rugged(adjective, strong, intense, energetic)
1
scrupulous(adjective, complete, exact, full)
1
slam-bang(complete, exact, full, conscientious)
1
snappy(adjective, strong, energetic, powerful)
1
soup to nuts(expression, idiom, complete, full)
1
spanking(adjective, strong, energetic, powerful)
1
spirited(adjective, strong, energetic, powerful)
1
steamroller(adjective, strong, energetic, powerful)
1
strapping(adjective, strong, intense, energetic)
1
strenuous(adjective, strong, intense, energetic)
1
strong as an ox(expression, adjective, idiom, strong)
1
sturdy(adjective, strong, intense, energetic)
1
sweeping(complete, full, conscientious, exhaustive)
1
take-charge(adjective, strong, energetic, powerful)
1
take-over(adjective, strong, intense, energetic)
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APASmart Define. (2015). efficient thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/efficient/thesaurus/synonyms
ChicagoSmart Define. 2015. "efficient thesaurus" https://smartdefine.org/efficient/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, efficient thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/efficient/thesaurus/synonyms>.
MLASmart Define. "efficient thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/efficient/thesaurus/synonyms>