- Definitions|0
- Thesaurus|128
- Abbreviations|0
| sophistic(adjective, mad, unreasonable, irrational, fallacious) | |
| sophistical(bad, false, mad, unreasonable, irrational) | |
| superstitious | |
| tenuous(poor, negative, implausible, vacant, unconvincing) | |
| uncorroborated | |
| unjustifiable(adjective, unwarranted) | |
| unreasonable(poor, mad, irrational, unnecessary, implausible) | |
| unreasoned(mad, unreasonable, irrational) | |
| unsatisfactory(bad, poor, false, incorrect, inaccurate) | |
| unsound(adjective, error) | |
| unsubstantial(error, unsubstantiality) | |
| unsubstantiated | |
| unsupported | |
| unsustained | |
| untenable | |
| untrue(adjective, error) | |
| vain | |
| way off(expression, mad, unreasonable, irrational) | |
| without basis | |
| without foundation(expression, idiom, unsubstantiality) |
For more, visit
Ungrounded on
Power Thesaurus
| APA | Smart Define. (2015). ungrounded thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ungrounded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ungrounded thesaurus" https://smartdefine.org/ungrounded/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, ungrounded thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ungrounded/thesaurus/synonyms>. |
| MLA | Smart Define. "ungrounded thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/ungrounded/thesaurus/synonyms> |