- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
65 entries under strange topic. ×
| insubstantial(adjective, dull, body, strong, light) | |
| weak(adjective, dull, strong, light, great) | |
| thin(adjective, dull, light, weak, great) | |
| imaginary(adjective, light, gentle, substance) | |
| unbelievable(adjective, extraordinary, unreasonable, fantasy) | |
| visionary(adjective, gentle, obscure, substance) | |
| fantastic(adjective, gentle, extraordinary, fantasy) | |
| illusory(adjective, light, weak, slight) | |
| delusive(adjective, trivial, fantasy, insufficient) | |
| fanciful(adjective, light, gentle, fantasy) | |
| implausible(adjective, thin, extraordinary, unreasonable) | |
| incredible(adjective, extraordinary, unreasonable, fantasy) | |
| unconvincing(adjective, thin, extraordinary, unreasonable) | |
| delusional(adjective, fantasy, unreal) | |
| delusory(adjective, fantasy, unreal) | |
| hallucinatory(adjective, negative, fantastic, fantasy) | |
| illusional(adjective, fantasy, unreal) | |
| illusionary(adjective, fantasy, unreal) | |
| illusive(adjective, fantasy, unreal) | |
| improbable(adjective, thin, extraordinary, unreasonable) |
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| APA | Smart Define. (2016). unsubstantial thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unsubstantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsubstantial thesaurus" https://smartdefine.org/unsubstantial/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, unsubstantial thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unsubstantial/thesaurus/synonyms>. |
| MLA | Smart Define. "unsubstantial thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/unsubstantial/thesaurus/synonyms> |