166 entries under tough topic. ×

2
exuberant(adjective, strong, intense, energetic)
2
hard as nails(expression, adjective, idiom, strong, hard)
2
harsh(adjective, strong, hard, sturdy)
2
heavy(adjective, person, body, strong, hard)
2
in good health(expression, adjective, idiom, strong, great)
2
severe(adjective, strong, hard, sturdy)
2
spanking(adjective, strong, great, energetic)
2
steely(adjective, strong, hard, sturdy)
2
take-charge(adjective, strong, energetic, powerful)
2
take-over(adjective, strong, intense, energetic)
2
tenacious(adjective, strong, sound, secure)
2
thick(adjective, person, body, strong, hard)
2
unrelenting(adjective, strong, hard, sturdy)
2
wicked(adjective, strong, fit, informal)
1
bitter(adjective, strong, hard, sturdy)
1
able(adjective, strong, sound, fit)
1
astringent(adjective, strong, hard, sturdy)
1
authoritarian(adjective, strong, hard, energetic)
1
ball of fire(expression, adjective, idiom, strong, great)
1
bright-eyed(strong, great, right, fit)
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APASmart Define. (2016). robust thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/robust/thesaurus/synonyms
ChicagoSmart Define. 2016. "robust thesaurus" https://smartdefine.org/robust/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, robust thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/robust/thesaurus/synonyms>.
MLASmart Define. "robust thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/robust/thesaurus/synonyms>