- Definitions|0
- Thesaurus|48
- Abbreviations|0
| idle | |
| unsubstantiated(adjective, untrue, illogical, deceptive, unsupported) | |
| unsustainable | |
| vain(adjective, false, untrue, illogical, deceptive) | |
| baseless | |
| empty | |
| fabricated(adjective, false, untrue, illogical, deceptive) | |
| fallacious(adjective, false, unreasonable, unsound, untrue) | |
| groundless | |
| inconclusive | |
| indecisive | |
| mendacious(adjective, false, untrue, illogical, deceptive) | |
| misleading(adjective, false, untrue, illogical, deceptive) | |
| spurious(adjective, false, unreasonable, unsound, untrue) | |
| trumped up(expression, adjective, false, untrue, illogical) | |
| unauthenticated | |
| uncertified | |
| unconfirmed | |
| uncorroborated | |
| undemonstrated |
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| APA | Smart Define. (2015). without basis thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/without_basis/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "without basis thesaurus" https://smartdefine.org/without_basis/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, without basis thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/without_basis/thesaurus/synonyms>. |
| MLA | Smart Define. "without basis thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/without_basis/thesaurus/synonyms> |