- Definitions|1
- Thesaurus|1.5k
- Abbreviations|0
63 entries under adjective topic. ×
| untrue(false, illogical, inaccurate, deceptive) | |
| untrustworthy | |
| unwarranted | |
| vain(untrue, illogical, deceptive, unsupported) | |
| without foundation(expression, untrue, illogical, deceptive) | |
| wobbly | |
| arguable(questionable, unproven) | |
| deceptive(untrue, illogical, unsupported, groundless) | |
| dubitable(questionable, unproven) | |
| empty | |
| erroneous | |
| fabricated(untrue, illogical, deceptive, unsupported) | |
| hard to believe(questionable, unproven) | |
| mendacious(untrue, illogical, deceptive, unsupported) | |
| misleading(untrue, illogical, deceptive, unsupported) | |
| open to doubt(questionable, unproven) | |
| open to question(questionable, unproven) | |
| precarious | |
| tenuous | |
| trumped up(expression, untrue, illogical, deceptive) |
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| APA | Smart Define. (2016). unsubstantiated thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unsubstantiated/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsubstantiated thesaurus" https://smartdefine.org/unsubstantiated/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, unsubstantiated thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unsubstantiated/thesaurus/synonyms>. |
| MLA | Smart Define. "unsubstantiated thesaurus" 3 February 2016. Web. 28 September 2026. <https://smartdefine.org/unsubstantiated/thesaurus/synonyms> |