10
tenable(adjective, sound, reasonable, rational, defended)
7
defendable(adjective, sound, reasonable, rational, defended)
7
defensible(adjective, sound, reasonable, rational, defended)
7
justifiable(adjective, sound, reasonable, rational, defended)
6
supportable(adjective, defended, conceivable, tenable, verbal attack)
4
sustainable(adjective, conceivable, tenable)
2
arguable(adjective, sound, reasonable, rational, justified)
2
believable(adjective, sound, reasonable, rational, conceivable)
2
credible(adjective, sound, reasonable, rational, conceivable)
2
plausible(adjective, sound, reasonable, rational)
2
rational(adjective, sound, reasonable, conceivable, tenable)
2
reasonable(adjective, sound, rational, justified, conceivable)
1
bearable
1
conceivable(adjective, tenable)
1
excusable(adjective, sound, reasonable, rational, justified)
1
imaginable(adjective, conceivable, tenable)
1
livable
1
rectifiable
1
reliable(sound, reasonable, rational)
1
reparable
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APASmart Define. (2015). maintainable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/maintainable/thesaurus/synonyms
ChicagoSmart Define. 2015. "maintainable thesaurus" https://smartdefine.org/maintainable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, maintainable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/maintainable/thesaurus/synonyms>.
MLASmart Define. "maintainable thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/maintainable/thesaurus/synonyms>