| covering(coat, obscurity, layer, fogginess, mistiness) | |
| diffuse | |
| doodad | |
| effluvium(mist, smog, vapor) | |
| filminess | |
| fold(covering, coat, cloud, obscurity, layer) | |
| formulation | |
| fumes(obscurity, fogginess, mistiness) | |
| fuzziness(obscurity, fogginess, mistiness) | |
| galactic | |
| gaseous | |
| grease(mist, smog, vapor) | |
| ground clouds(expression, obscurity, mist, fogginess, mistiness) | |
| indistinctness(obscurity, fogginess, mistiness) | |
| integument(covering, fold, coat, cloud, obscurity) | |
| irregular galaxy | |
| island universe | |
| maze(mist, smog, vapor) | |
| membrane(covering, fold, coat, cloud, obscurity) | |
| mental unclarity(expression, mist, smog, vapor) |
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| APA | Smart Define. (2015). nebula thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nebula/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "nebula thesaurus" https://smartdefine.org/nebula/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, nebula thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nebula/thesaurus/synonyms>. |
| MLA | Smart Define. "nebula thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/nebula/thesaurus/synonyms> |