- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
116 entries under adjective topic. ×
| baseless(reason, poor, foolish, true) | |
| unfounded(reason, foolish, true, crazy) | |
| unjustifiable(careless, unwarranted, defended, verbal attack) | |
| unwarranted(right, reasonable, reason, true) | |
| unsound(foolish, unreasonable, error, reasoning) | |
| idle(reason, false, true, worthless) | |
| illogical(reason, poor, foolish, sense) | |
| unjustified(reason, unwarranted, untrue, justification) | |
| unreasonable(poor, foolish, reasoning, irrational) | |
| wanton(careless, cruel, unwarranted, malicious) | |
| false(reason, poor, error, reasoning) | |
| unsupported(reason, unwarranted, untrue, justification) | |
| gratuitous(reason, useless, unwarranted, untrue) | |
| untenable(reasoning, defended, verbal attack) | |
| flimsy(reason, poor, negative, unwarranted) | |
| ungrounded(poor, negative, error, unwarranted) | |
| unsustainable(defended, verbal attack) | |
| empty(reason, negative, worthless, unwarranted) | |
| fallacious(poor, foolish, unreasonable, error) | |
| indefensible(senseless, unwarranted, wanton, gratuitous) |
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| APA | Smart Define. (2015). groundless thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/groundless/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "groundless thesaurus" https://smartdefine.org/groundless/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, groundless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/groundless/thesaurus/synonyms>. |
| MLA | Smart Define. "groundless thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/groundless/thesaurus/synonyms> |