- Definitions|0
- Thesaurus|538
- Abbreviations|0
18 entries under defended topic. ×
| untenable(adjective, quality, weakness, instability, unfounded) | |
| indefensible(adjective, quality, weakness, invalid, instability) | |
| unjustifiable(adjective, quality, weakness, instability) | |
| groundless(adjective, quality, weakness, instability) | |
| insupportable(adjective, support, quality, weakness, true) | |
| unfounded(adjective, quality, weakness, instability) | |
| unsound(adjective, quality, weakness, instability) | |
| illogical(adjective, support, quality, weakness) | |
| unreasonable(adjective, support, quality, weakness) | |
| inexplicable(adjective, support, quality, weakness) | |
| unacceptable(adjective, quality, weakness, verbal attack) | |
| unexplainable(adjective, quality, weakness, verbal attack) | |
| irrational(adjective, characteristic, weakness, proof) | |
| absurd(adjective, verbal attack) | |
| extreme(adjective, verbal attack) | |
| objectionable(adjective, verbal attack) | |
| outrageous(adjective, verbal attack) | |
| ridiculous(adjective, verbal attack) |
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| APA | Smart Define. (2015). unsustainable thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unsustainable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unsustainable thesaurus" https://smartdefine.org/unsustainable/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, unsustainable thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unsustainable/thesaurus/synonyms>. |
| MLA | Smart Define. "unsustainable thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/unsustainable/thesaurus/synonyms> |