- Definitions|0
- Thesaurus|54
- Abbreviations|0
40 entries under adjective topic. ×
| unsubstantiated(untrue, illogical, deceptive, unsupported) | |
| chimerical | |
| deceptive(false, untrue, illogical, unsubstantiated) | |
| erroneous | |
| flimsy | |
| gratuitous | |
| hypothetical | |
| illogical | |
| illusory | |
| imaginary | |
| nonexistent(real, fictional) | |
| speculative | |
| suppositional | |
| tenuous | |
| uncalled-for | |
| uncorroborated | |
| unjustifiable | |
| unreasonable | |
| unreasoned | |
| untrue(false, illogical, deceptive, unsupported) |
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| APA | Smart Define. (2015). without foundation thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/without_foundation/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "without foundation thesaurus" https://smartdefine.org/without_foundation/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, without foundation thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/without_foundation/thesaurus/synonyms>. |
| MLA | Smart Define. "without foundation thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/without_foundation/thesaurus/synonyms> |