167 entries under sturdy topic. ×

7
peppy(adjective, tough, energetic, powerful, lively)
7
vital(adjective, tough, energetic, powerful, lively)
7
zippy(adjective, tough, sharp, energetic, powerful)
6
bulky(adjective, person, body, solid, active)
6
dense(adjective, person, set, body, hard)
6
dependable(adjective, good, tough, honest, solid)
6
indomitable(adjective, hard, great, tough, firm)
6
massive(adjective, person, body, powerful, large)
6
rough(adjective, hard, tough, intense, violent)
6
snappy(adjective, tough, sharp, energetic, powerful)
6
thriving(adjective, sound, tough, fit, happy)
6
unshakable(adjective, strong, hard, secure, tough)
5
bitter(adjective, hard, tough, sharp, intense)
5
leathery(adjective, hard, solid, stiff)
5
reliable(adjective, calm, sound, tough, reasonable)
5
serious(adjective, hard, tough, firm, solid)
5
strict(adjective, hard, tough, severe, flat)
5
thick(adjective, person, body, hard, tough)
4
adamantine(adjective, set, hard, tough, firm)
4
authoritarian(adjective, hard, tough, energetic, powerful)
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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>