166 entries under tough topic. ×

1
bushy-tailed(strong, great, right, fit)
1
capable(adjective, strong, sound, fit)
1
dashing(adjective, strong, energetic, powerful)
1
driving(adjective, strong, energetic, powerful)
1
fixed(adjective, strong, sound, secure)
1
full of life(expression, strong, fit, fresh)
1
hard-boiled(adjective, strong, hard, simple)
1
hard-driving(adjective, strong, intense, energetic)
1
heavy-duty(adjective, strong, sound, solid)
1
immovable(adjective, strong, hard, secure)
1
in fine feather(expression, adjective, idiom, strong, sound)
1
in good condition(expression, adjective, idiom, strong)
1
indomitable(adjective, strong, hard, great)
1
persuasive(adjective, strong, great, energetic)
1
physically fit(expression, strong, fit, fresh)
1
reinforced(adjective, strong, sound, solid)
1
rosy-cheeked(strong, fit, fresh, well)
1
safe and sound(expression, strong, fit, fresh)
1
stark(adjective, strong, hard, sound)
1
steamroller(adjective, strong, great, energetic)
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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>