- Definitions|2
- Thesaurus|2k
- Abbreviations|0
| smoggy(adjective, dull, obscure, dim, cloudy) | |
| sooty(adjective, dull, dark, gloomy, dim) | |
| stormy(dark, gloomy, misty) | |
| stygian(adjective, dull, dark, gloomy, dim) | |
| thunderheaded | |
| undetermined(unclear, indistinct, indistinguishable) | |
| unlighted(adjective, dull, dark, gloomy, dim) | |
| unorganized(disorder, confusion, mess, muddle, jumble) | |
| unreal(adjective, fake, imaginary, illusory, hypothetical) | |
| unsettled(unclear, hazy, indistinct, indistinguishable, indeterminate) | |
| unspecified(unclear, indistinct, indistinguishable) | |
| unsubstantial(imaginary, illusory, dreamlike, ephemeral) | |
| veiled | |
| weak | |
| Cimmerian(adjective, dull, dark, gloomy, dim) | |
| aerial(weak, fake, false, dubious, imaginary) | |
| anagalactic | |
| asteroidal | |
| astral | |
| astrologic |
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| APA | Smart Define. (2016). nebulous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nebulous/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "nebulous thesaurus" https://smartdefine.org/nebulous/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, nebulous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nebulous/thesaurus/synonyms>. |
| MLA | Smart Define. "nebulous thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/nebulous/thesaurus/synonyms> |