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

47 entries under rational topic. ×

3
proven(adjective, sound, reasonable, logical)
2
accurate(sound, correct, reasonable, proper)
2
binding(sound, reasonable)
2
bona fide(expression, good, sound, right, reasonable)
2
compelling(sound, reasonable)
2
persuasive(good, sound, right, reasonable)
1
conclusive(adjective, strong, sound, reasonable, easy)
1
irrefutable(sound, reasonable, absolute, indisputable)
1
legit(adjective, good, sound, right, reasonable)
1
right(adjective, good, sound, reasonable)
1
telling(sound, reasonable)
0
attested(good, sound, right, reasonable)
0
defensible(adjective, sound, reasonable, justified)
0
determinative(sound, reasonable)
0
efficacious(good, sound, right, reasonable)
0
efficient(good, sound, right, reasonable)
0
in force(expression, good, sound, right, reasonable)
0
kosher(good, sound, right, reasonable)
0
official(good, sound, right, reasonable)
0
original(good, sound, right, reasonable)
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ChicagoSmart Define. 2016. "well-founded thesaurus" https://smartdefine.org/well-founded/thesaurus/synonyms (accessed September 27, 2026).
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MLASmart Define. "well-founded thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/well-founded/thesaurus/synonyms>