50 entries under fair topic. ×

18
proper(adjective, reasonable, honest, just)
14
reasonable(adjective, sound, right, reasonable, slight)
11
legitimate(adjective, clear, sound, right, reasonable)
11
right(adjective, sound, reasonable, honest)
10
lawful(adjective, sound, right, reasonable)
9
logical(adjective, clear, sound, reasonable, sensible)
9
rightful(adjective, right, reasonable, proper)
8
just(adjective, adverb, sound, right, reasonable)
8
rational(adjective, clear, sound, reasonable, honest)
8
sensible(adjective, clear, sound, reasonable, honest)
7
legal(adjective, sound, right, reasonable)
7
plausible(adjective, clear, sound, reasonable, slight)
7
sound(adjective, clear, reasonable, honest, sensible)
4
due(adjective, reasonable, proper, moral)
3
balanced(right, reasonable, honest, reasoning)
3
condign(adjective, proper, moral, upright)
3
deserved(adjective, honest, moral, upright)
3
fitting(adjective, honest, moral, upright)
3
suitable(adjective, reasonable, honest, moral)
2
appropriate(adjective, honest, moral, upright)
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APASmart Define. (2016). justifiable thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/justifiable/thesaurus/synonyms
ChicagoSmart Define. 2016. "justifiable thesaurus" https://smartdefine.org/justifiable/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, justifiable thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/justifiable/thesaurus/synonyms>.
MLASmart Define. "justifiable thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/justifiable/thesaurus/synonyms>