- Definitions|2
- Thesaurus|1.9k
- Abbreviations|0
140 entries under thin topic. ×
| insubstantial(adjective, dull, body, strong, light) | |
| flimsy(adjective, strong, light, weak, great) | |
| weak(adjective, dull, strong, light, great) | |
| fragile(adjective, strong, light, weak, slight) | |
| frail(adjective, strong, light, weak, slight) | |
| feeble(adjective, dull, strong, light, weak) | |
| immaterial(adjective, form, body, light, weak) | |
| lightweight(adjective, light, slight, easy) | |
| slight(adjective, light, weak, soft, easy) | |
| light(adjective, weak, soft, slight) | |
| ethereal(adjective, light, slight, easy) | |
| shaky(adjective, weak, slight, delicate) | |
| unsound(adjective, bad, strong, light, weak) | |
| decrepit(adjective, strong, light, weak, slight) | |
| delicate(adjective, strong, light, weak, slight) | |
| infirm(adjective, strong, light, weak, slight) | |
| rickety(adjective, weak, slight, weakness) | |
| airy(adjective, light, weak, slight, easy) | |
| tenuous(adjective, strong, light, weak, slight) | |
| diaphanous(adjective, weak, slight, substance) |
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| APA | Smart Define. (2016). unsubstantial thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unsubstantial/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsubstantial thesaurus" https://smartdefine.org/unsubstantial/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, unsubstantial thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unsubstantial/thesaurus/synonyms>. |
| MLA | Smart Define. "unsubstantial thesaurus" 30 March 2016. Web. 22 September 2026. <https://smartdefine.org/unsubstantial/thesaurus/synonyms> |