- Definitions|2
- Thesaurus|982
- Abbreviations|0
16 entries under substantiation topic. ×
| groundless(adjective, reason, poor, foolish, true) | |
| unfounded(adjective, false, foolish, true, crazy) | |
| unwarranted(adjective, right, reasonable, true, untrue) | |
| unjustified(adjective, unwarranted, untrue, illogical, deceptive) | |
| ungrounded(adjective, poor, negative, untrue, vacant) | |
| bottomless(adjective, false, true, senseless, unwarranted) | |
| gratuitous(adjective, false, unwarranted, untrue, necessary) | |
| unjustifiable(adjective, unwarranted) | |
| unsupported(adjective, false, unwarranted, untrue) | |
| flimsy(adjective, poor, negative, untrue, implausible) | |
| unsubstantiated | |
| untenable | |
| reasonless(adjective, false, foolish, crazy, unreasonable) | |
| foundationless(adjective, false, unwarranted, untrue, illogical) | |
| uncorroborated | |
| unconfirmed |
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| APA | Smart Define. (2015). baseless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/baseless/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "baseless thesaurus" https://smartdefine.org/baseless/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, baseless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/baseless/thesaurus/synonyms>. |
| MLA | Smart Define. "baseless thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/baseless/thesaurus/synonyms> |