- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
45 entries under foolish topic. ×
| baseless(adjective, reason, poor, true) | |
| unfounded(adjective, reason, true, crazy) | |
| unsound(adjective, unreasonable, error, reasoning) | |
| illogical(adjective, reason, poor, sense) | |
| unreasonable(adjective, poor, reasoning, irrational) | |
| fallacious(adjective, poor, unreasonable, error) | |
| absurd(adjective, unreasonable, irrational, illogical) | |
| invalid(unreasonable, reasoning, irrational, illogical) | |
| irrational(adjective, unreasonable, illogical, defended) | |
| ridiculous(adjective, unreasonable, illogical, defended) | |
| sophistic(adjective, unreasonable, irrational, illogical) | |
| specious(adjective, unreasonable, irrational, illogical) | |
| crazy(unreasonable, illogical) | |
| mad(unreasonable, irrational, illogical, unreasoned) | |
| nutty(unreasonable, irrational, illogical, unreasoned) | |
| preposterous(unreasonable, irrational, illogical, unreasoned) | |
| reasonless(adjective, crazy, unreasonable, senseless) | |
| senseless(unreasonable, irrational, illogical, unreasoned) | |
| wacky(unreasonable, irrational, illogical, unreasoned) | |
| aberrant(unreasonable, illogical) |
For more, visit
Groundless on
Power Thesaurus
| 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> |