73 entries under solid topic. ×

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fast(adjective, firm, sensible, steady)
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fixed(adjective, firm, stable, sturdy)
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immovable(adjective, firm, stable, fixed)
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intense(adjective, firm, sensible, steady)
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liege(adjective, firm, sensible, steady)
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never-failing(adjective, firm, stable, fixed)
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patterned(adjective, firm, stable, fixed)
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regular(adjective, firm, stable, fixed)
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safe(adjective, firm, stable, fixed)
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serious-minded(adjective, firm, sensible, steady)
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set(adjective, firm, stable, fixed)
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set in stone(expression, adjective, idiom, firm)
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settled(adjective, firm, sensible, steady)
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single-minded(adjective, firm, sensible, steady)
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solid as a rock(expression, adjective, idiom, firm)
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stabile(adjective, firm, stable, fixed)
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staunch(adjective, firm, sensible, steady)
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steady-going(adjective, firm, stable, fixed)
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sturdy(adjective, firm, stable, fixed)
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substantial(adjective, firm, stable, fixed)
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APASmart Define. (2015). levelheaded thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/levelheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "levelheaded thesaurus" https://smartdefine.org/levelheaded/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, levelheaded thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/levelheaded/thesaurus/synonyms>.
MLASmart Define. "levelheaded thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/levelheaded/thesaurus/synonyms>