- Definitions|3
- Thesaurus|1.7k
- Abbreviations|0
176 entries under adjective topic. ×
| idle(unsubstantiated, unsupported, unfounded, groundless) | |
| in a brown study(idiom, thoughts) | |
| in theory | |
| meaningless | |
| parlous | |
| pathetic | |
| sceptical | |
| speculated | |
| suspected | |
| tenuous | |
| tough | |
| unapt | |
| uncalled-for | |
| unjustifiable | |
| unnegotiable | |
| without foundation |
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| APA | Smart Define. (2015). speculative thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/speculative/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "speculative thesaurus" https://smartdefine.org/speculative/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, speculative thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/speculative/thesaurus/synonyms>. |
| MLA | Smart Define. "speculative thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/speculative/thesaurus/synonyms> |