- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
350 entries under adjective topic. ×
| unsound(bad, strong, light, weak) | |
| decrepit(strong, light, weak, slight) | |
| delicate(strong, light, weak, slight) | |
| illusory(light, weak, slight, strange) | |
| incorporeal(body, light, abstract, heavenly) | |
| infirm(strong, light, weak, slight) | |
| rickety(weak, slight, weakness, thin) | |
| shadowy(gentle, obscure, substance, marvelous) | |
| airy(light, weak, slight, easy) | |
| bodiless(body, abstract, heavenly, theoretical) | |
| impalpable(abstract, heavenly, theoretical, immaterial) | |
| insignificant(weak, soft, gentle, mild) | |
| tenuous(strong, light, weak, slight) | |
| diaphanous(weak, slight, thin, substance) | |
| puny(strong, light, weak, soft) | |
| chimerical(light, weak, slight, gentle) | |
| delusive(strange, trivial, fantasy, insufficient) | |
| disembodied(body, heavenly, incorporeal, nonmaterial) | |
| fanciful(light, gentle, strange, fantasy) | |
| implausible(thin, extraordinary, strange, unreasonable) |
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| APA | Smart Define. (2016). unsubstantial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/unsubstantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsubstantial thesaurus" https://smartdefine.org/unsubstantial/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, unsubstantial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unsubstantial/thesaurus/synonyms>. |
| MLA | Smart Define. "unsubstantial thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/unsubstantial/thesaurus/synonyms> |