- Definitions|2
- Thesaurus|896
- Abbreviations|0
| oxymoronic | |
| paradoxical | |
| passing belief | |
| past belief(expression, extraordinary, amazing, incredible) | |
| peachy(adjective, excellent, superb, wonderful, marvelous) | |
| peculiar | |
| perplexing(adjective, unfathomable, impenetrable, opaque, unintelligible) | |
| poor(adjective, flat, thin, false, small) | |
| primo(adjective, excellent, superb, wonderful, marvelous) | |
| problematical | |
| prohibited | |
| queer(adjective, extraordinary, unusual, strange, exceptional) | |
| rad(adjective, excellent, superb, wonderful, marvelous) | |
| reachy(adjective, belief, unreasonable, dubious, unlikely) | |
| refreshing(adjective, extraordinary, unusual, strange, exceptional) | |
| ruled-out | |
| scarce(adjective, light, flat, poor, thin) | |
| scatterbrained(extraordinary, amazing, incredible) | |
| screwy(extraordinary, amazing, incredible) | |
| self-contradictory |
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| APA | Smart Define. (2015). inconceivable thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inconceivable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inconceivable thesaurus" https://smartdefine.org/inconceivable/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, inconceivable thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inconceivable/thesaurus/synonyms>. |
| MLA | Smart Define. "inconceivable thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/inconceivable/thesaurus/synonyms> |