177 entries under sturdy topic. ×

1
perfect(adjective, clear, complete, total, solid)
1
poised(adjective, calm, strong, secure, solid)
1
sedate(adjective, severe, solid, stable, thoughtful)
1
self-possessed(adjective, solid, resolution, stable, fixed)
1
sensible(adjective, solid, physical, material, true)
1
solid as a rock(expression, adjective, idiom, calm, strong)
1
staid(adjective, severe, solid, stable, thoughtful)
1
total(adjective, complete, solid, certain, vigorous)
1
unblemished(complete, solid, vigorous)
1
undamaged(adjective, complete, solid, vigorous, healthy)
1
undecayed(complete, solid, vigorous)
1
unsparing(adjective, strong, hard, tough, severe)
0
alive and kicking(expression, idiom, complete, solid, vigorous)
0
bitter(adjective, strong, hard, tough, severe)
0
by the book(expression, adjective, idiom, strong, hard)
0
dimensional(adjective, strong, hard, substantial)
0
effectual(complete, solid, vigorous)
0
ferric(adjective, strong, hard, tough)
0
ferrous(adjective, strong, hard, tough)
0
flawless(complete, solid, vigorous)
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APASmart Define. (2016). firm thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/firm/thesaurus/synonyms
ChicagoSmart Define. 2016. "firm thesaurus" https://smartdefine.org/firm/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, firm thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/firm/thesaurus/synonyms>.
MLASmart Define. "firm thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/firm/thesaurus/synonyms>