| secure(sound, reasonable, rational) | |
| strong(sound, reasonable, rational) | |
| trustworthy(sound, reasonable, rational) | |
| viable(adjective, sound, reasonable, rational, conceivable) | |
| workable(adjective, conceivable, tenable) | |
| able to hold water(expression, idiom, conceivable, tenable) | |
| acceptable(sound, reasonable, rational, justified, defensible) | |
| admissible(reasonable, justified, defensible) | |
| allowable(reasonable, justified, defensible) | |
| assertable(conceivable, tenable) | |
| condonable(sound, reasonable, rational, justified, defensible) | |
| continual | |
| continuous | |
| correct(reasonable, justified, defensible) | |
| creditable | |
| endurable | |
| fair(reasonable, justified, defensible) | |
| feasible(adjective, conceivable, tenable) | |
| fit(reasonable, justified, defensible) | |
| forgivable(reasonable, justified, defensible) |
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Maintainable on
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| APA | Smart Define. (2015). maintainable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/maintainable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "maintainable thesaurus" https://smartdefine.org/maintainable/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, maintainable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/maintainable/thesaurus/synonyms>. |
| MLA | Smart Define. "maintainable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/maintainable/thesaurus/synonyms> |