- Definitions|2
- Thesaurus|2.4k
- Abbreviations|0
384 entries under adjective topic. ×
| unsubstantial(dull, body, strong, light) | |
| flimsy(strong, light, weak, slight) | |
| feeble(dull, strong, light, weak) | |
| slight(mean, light, weak, easy) | |
| frail(strong, light, weak, slight) | |
| thin(dull, mean, light, weak) | |
| weak(dull, strong, light, soft) | |
| fanciful(weak, strange, fantasy, imaginary) | |
| fragile(strong, light, weak, slight) | |
| immaterial(body, light, weak, slight) | |
| intangible(light, weak, slight, fake) | |
| tenuous(strong, light, weak, slight) | |
| unreal(weak, fake, abstract, imaginary) | |
| insignificant(weak, value, small, unimportant) | |
| airy(light, weak, slight, easy) | |
| trivial(light, slight, easy, thin) | |
| illusory(weak, strange, fantasy, imaginary) | |
| lightweight(light, slight, easy, thin) | |
| poor(dull, mean, light, weak) | |
| incorporeal(body, light, weak, abstract) |
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| APA | Smart Define. (2016). insubstantial thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/insubstantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "insubstantial thesaurus" https://smartdefine.org/insubstantial/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, insubstantial thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/insubstantial/thesaurus/synonyms>. |
| MLA | Smart Define. "insubstantial thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/insubstantial/thesaurus/synonyms> |