Synonyms|359Antonyms|67|Broader|1Narrower|0Related|355

42 entries under valid topic. ×

12
sound(adjective, calm, good, strong, secure)
7
reliable(adjective, calm, good, strong, secure)
6
legitimate(adjective, good, sound, right, reasonable)
6
sensible(adjective, reasonable, reason, natural)
6
true(sound, reasonable, rational, absolute)
4
proper(adjective, correct, reasonable, moral)
3
authentic(good, sound, right, reasonable, rational)
3
certain(adjective, strong, reasonable, easy, sensible)
3
consistent(reasonable, sensible, natural, normal)
3
genuine(good, sound, right, reasonable, rational)
3
justifiable(adjective, sound, reasonable, rational)
3
lawful(adjective, good, sound, right, reasonable)
3
legal(good, sound, right, reasonable, rational)
3
real(absolute, indisputable, lawful, unmistakable)
2
admissible(adjective, reasonable, sensible, natural, normal)
2
correct(good, reasonable, proper, moral)
2
fair(adjective, reasonable, lawful, rightful)
2
probable(adjective, reasonable, sensible, true, natural)
2
rightful(adjective, reasonable, lawful, justified)
1
accepted(adjective, reasonable, sensible, natural, normal)
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ChicagoSmart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, well-founded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/well-founded/thesaurus/synonyms>.
MLASmart Define. "well-founded thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms>