138 entries under sturdy topic. ×

2
fit(adjective, strong, hard, sound, complete)
2
flawless(adjective, good, great, complete, correct)
2
forcible(adjective, clear, strong, sound, tough)
2
heavy-duty(adjective, strong, sound, tough, heavy)
2
imperturbable(adjective, firm, certain, stable, fixed)
2
intense(adjective, complete, firm, total, enthusiastic)
2
liege(adjective, firm, stable, fixed)
2
reinforced(adjective, strong, sound, tough, heavy)
2
right(adjective, good, sound, complete, smooth)
2
set in stone(expression, adjective, idiom, calm, set)
2
sinewy(adjective, strong, hard, sound, tough)
2
tenacious(adjective, strong, sound, secure, tough)
2
unblemished(adjective, complete, clean, pure, vigorous)
2
undamaged(adjective, complete, clean, perfect, pure)
2
unfaltering(adjective, firm, steady, stable, fixed)
2
unimpaired(verb, adjective, sound, complete, perfect)
2
uninjured(adjective, complete, perfect, vigorous, healthy)
2
unqualified(adjective, excellent, firm, marvelous, wicked)
1
hard as nails(expression, adjective, idiom, set, strong)
1
able(adjective, strong, sound, tough, easy)
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APASmart Define. (2016). solid thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/solid/thesaurus/synonyms
ChicagoSmart Define. 2016. "solid thesaurus" https://smartdefine.org/solid/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, solid thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/solid/thesaurus/synonyms>.
MLASmart Define. "solid thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/solid/thesaurus/synonyms>