80 entries under reasoning topic. ×

32
believable(adjective, open, sound, reasonable, honest)
31
reasonable(adjective, sound, reasonable, slight, sensible)
27
credible(adjective, open, sound, reasonable, honest)
15
rational(adjective, clear, sound, reasonable, sensible)
11
tenable(adjective, sound, reasonable, slight, sensible)
10
sound(adjective, clear, reasonable, honest, sensible)
10
specious(adjective, false, lying, flattery)
9
deceptive(adjective, false, dishonest, lying)
9
sensible(adjective, clear, open, sound, reasonable)
9
logical(adjective, clear, sound, reasonable, sensible)
5
justifiable(adjective, clear, sound, reasonable, slight)
4
Jesuitical
4
arguable(adjective, sound, reasonable, sensible, rational)
4
hollow
4
illusive(false, possible, misleading, apparent)
4
intelligent(adjective, clear, sound, reasonable, sensible)
4
wise(adjective, clear, sound, reasonable, sensible)
3
judicious(adjective, clear, sound, reasonable, honest)
3
practical(adjective, sound, sensible, rational, intelligent)
3
sophistical
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APASmart Define. (2015). plausible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/plausible/thesaurus/synonyms
ChicagoSmart Define. 2015. "plausible thesaurus" https://smartdefine.org/plausible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, plausible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/plausible/thesaurus/synonyms>.
MLASmart Define. "plausible thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/plausible/thesaurus/synonyms>