Synonyms|282Antonyms|85|Broader|2Narrower|5Related|171

53 entries under rational topic. ×

40
sound(adjective, reasonable, strain, sensible)
37
consistent(adjective, sound, strain, sensible)
19
tolerant(adjective, sound, strain, sensible)
16
justifiable(adjective, sound, right, reasonable, slight)
15
defensible(adjective, attack, sound, right, reasonable)
14
plausible(adjective, sound, reasonable, slight, sensible)
12
credible(adjective, sound, reasonable, sensible)
12
reasonable(adjective, sound, slight, honest, sensible)
10
believable(adjective, sound, reasonable, sensible)
10
defendable(adjective, attack, sound, reasonable)
10
maintainable(adjective, sound, reasonable, defended)
6
excusable(adjective, sound, right, reasonable)
5
sensible(adjective, sound, intelligent, sober)
4
acceptable(adjective, sound, reasonable, realistic)
4
arguable(adjective, sound, reasonable, sensible)
4
trustworthy(adjective, sound, reasonable, realistic)
3
logical(adjective, sound, reasonable, sensible, proper)
3
reliable(adjective, sound, reasonable, realistic)
2
condonable(adjective, sound, reasonable, justified)
2
reasoned(adjective, sound, sensible, intelligent)
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ChicagoSmart Define. 2015. "tenable thesaurus" https://smartdefine.org/tenable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, tenable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/tenable/thesaurus/synonyms>.
MLASmart Define. "tenable thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/tenable/thesaurus/synonyms>