4
right(adjective, sound, reasonable, rational, legal)
4
vindicable(adjective, sound, reasonable, rational, justified)
3
condonable(adjective, sound, reasonable, rational, justified)
3
good(sound, reasonable, rational)
3
just(sound, reasonable, rational)
3
strong(adjective, sound, reasonable, rational)
3
warrantable(adjective, sound, reasonable, rational, justified)
2
acceptable(adjective, sound, reasonable, rational, justified)
2
admissible(adjective, reasonable, justified)
2
arguable(adjective, sound, reasonable, rational, justified)
2
authorized(adjective, legal)
2
believable(adjective, sound, reasonable, rational, conceivable)
2
constitutional(adjective, legal)
2
even
2
fair(reasonable, justified)
2
impregnable(adjective, sound, reasonable, rational, safety)
2
justified(adjective, reasonable)
2
level
2
licit(adjective, reasonable, legal, justified)
2
remissible(reasonable, justified)
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APASmart Define. (2016). defensible thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/defensible/thesaurus/synonyms
ChicagoSmart Define. 2016. "defensible thesaurus" https://smartdefine.org/defensible/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, defensible thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/defensible/thesaurus/synonyms>.
MLASmart Define. "defensible thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/defensible/thesaurus/synonyms>