20 entries under rational topic. ×

5
excusable(adjective, sound, reasonable, allowable)
4
defensible(adjective, sound, reasonable, justified)
4
tenable(adjective, sound, reasonable, justified)
2
condonable(sound, reasonable, justified, defensible)
2
reasonable(sound, justified, defensible)
2
vindicable(sound, reasonable, justified, defensible)
1
defendable(sound, reasonable)
1
plausible(sound, reasonable)
1
sound(reasonable, justified, defensible)
0
acceptable(sound, reasonable, justified, defensible)
0
arguable(sound, reasonable, justified, defensible)
0
believable(sound, reasonable)
0
credible(sound, reasonable)
0
impregnable(sound, reasonable)
0
maintainable(sound, reasonable, justified, defensible)
0
reliable(sound, reasonable)
0
secure(sound, reasonable)
0
strong(sound, reasonable)
0
trustworthy(sound, reasonable)
0
viable(sound, reasonable)
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APASmart Define. (2016). warrantable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/warrantable/thesaurus/synonyms
ChicagoSmart Define. 2016. "warrantable thesaurus" https://smartdefine.org/warrantable/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, warrantable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/warrantable/thesaurus/synonyms>.
MLASmart Define. "warrantable thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/warrantable/thesaurus/synonyms>