- Definitions|2
- Thesaurus|5k
- Abbreviations|0
66 entries under adjective topic. ×
| minor | |
| flimsy(strong, light, sound, thin) | |
| paltry(poor, worthless) | |
| insubstantial(strong, weak, imaginary) | |
| insignificant(important, significant) | |
| negligible | |
| small | |
| shy | |
| piddling | |
| tiny | |
| intangible | |
| spiritual | |
| unimportant(weak, soft, slight, important) | |
| ethereal | |
| immaterial(form, important, useful, irrelevant) | |
| little | |
| inconsiderable | |
| incorporeal | |
| abstract | |
| lightweight |
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| APA | Smart Define. (2016). substantial thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/substantial/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "substantial thesaurus" https://smartdefine.org/substantial/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, substantial thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substantial/thesaurus/antonyms>. |
| MLA | Smart Define. "substantial thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/substantial/thesaurus/antonyms> |