2
enough(good, suitable, acceptable, adequate, sufficient)
2
estimable(adjective, honest, pure, straight, real)
2
existent(adjective, solid, material, true, real)
2
fast
2
fixed(clear, certain, definite, established, stability)
2
germane(clear, sound, reasonable, appropriate, sensible)
2
hardy
2
heartfelt(adjective, physical, material, true, real)
2
honest-to-God(adjective, solid, material, real, genuine)
2
important(adjective, powerful, effective, expressive, working)
2
indicative(adjective, meaning, effective, expressive, working)
2
indubitable(clear, complete, material, certain, true)
2
influential(adjective, important, powerful, realistic, effective)
2
informed
2
intrinsic(adjective, physical, material, true, actual)
2
justified(reasonable, proper, forceful, permitted, convincing)
2
levelheaded(adjective, good, open, honest, sensible)
2
lucid(clear, sound, reasonable, sensible, rational)
2
natural(adjective, true, real, indisputable, lawful)
2
noble(correct, fair, equitable)
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APASmart Define. (2016). valid thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/valid/thesaurus/synonyms
ChicagoSmart Define. 2016. "valid thesaurus" https://smartdefine.org/valid/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, valid thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/valid/thesaurus/synonyms>.
MLASmart Define. "valid thesaurus" 31 March 2016. Web. 20 September 2026. <https://smartdefine.org/valid/thesaurus/synonyms>