182 entries under reasonable topic. ×

4
well-grounded(good, sound, correct, right)
3
accurate(adjective, good, sound, correct, right)
3
candid(adjective, good, open, clean)
3
coherent(adjective, clear, sound, sensible)
3
excusable(adjective, justified, defensible)
3
justified(adjective, correct, proper, moral)
3
lucid(adjective, clear, sound, sensible)
3
on the level(expression, adjective, idiom, good, open)
3
pardonable(adjective, justified, defensible)
3
pure(adjective, good, sound, correct, right)
3
righteous(adjective, good, sound, right)
3
straight(adjective, good, open, sound, correct)
3
upright(adjective, good, clear, sound)
2
aboveboard(adjective, good, open, clean)
2
binding(sound, rational)
2
clean(adjective, good, clear, honest)
2
compelling(clear, sound, sensible, rational)
2
condign(adjective, correct, fair, proper)
2
condonable(justified, defensible)
2
convincing(clear, sound, sensible, pure)
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APASmart Define. (2016). legitimate thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/legitimate/thesaurus/synonyms
ChicagoSmart Define. 2016. "legitimate thesaurus" https://smartdefine.org/legitimate/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, legitimate thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/legitimate/thesaurus/synonyms>.
MLASmart Define. "legitimate thesaurus" 31 March 2016. Web. 26 September 2026. <https://smartdefine.org/legitimate/thesaurus/synonyms>