- Definitions|2
- Thesaurus|666
- Abbreviations|0
| ideal(adjective, happy, perfect, fantastic, extravagant) | |
| idiosyncratic(adjective, strange, fantasy, unreal) | |
| imagined(adjective, happy, perfect, fantastic, extravagant) | |
| impossible | |
| incomprehensible | |
| inconceivable | |
| incongruous(adjective, strange, fantasy, unreal) | |
| inconsistent(adjective, change, continue) | |
| inconstant(adjective, change, continue) | |
| insubstantial(adjective, strange, fantasy, unreal) | |
| keen(adjective, good, slang) | |
| laughable | |
| loony(adjective, crazy, mad, odd, insane) | |
| loopy(adjective, crazy, mad, odd, insane) | |
| ludicrous | |
| lunatic(adjective, crazy, mad, odd, insane) | |
| madding(adjective, crazy, mad, odd, insane) | |
| madman(adjective, crazy, mad, odd, insane) | |
| maggoty | |
| manufactured |
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| APA | Smart Define. (2016). fantastical thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fantastical/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fantastical thesaurus" https://smartdefine.org/fantastical/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, fantastical thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fantastical/thesaurus/synonyms>. |
| MLA | Smart Define. "fantastical thesaurus" 30 March 2016. Web. 24 September 2026. <https://smartdefine.org/fantastical/thesaurus/synonyms> |