| murky(adjective, good, clear, bad, obscure) | |
| onerous(adjective, difficult) | |
| opaque(adjective, bad, gloom, black) | |
| oppressive(adjective, strong, rough) | |
| overcast(verb, adjective, bad, dark, gloom) | |
| put out(verb, expression, phrasal verb, dull, black) | |
| rich | |
| shadow(noun, dark, gloom, black, darkness) | |
| somber(adjective, bad, bright, gloom, black) | |
| tenebrous(adjective, dark, ominous) | |
| thick(adjective, strong, rough) | |
| titanic | |
| troubling | |
| twilight(noun, time, dark, night) | |
| weighted(adjective, dull, slight, easy, obscure) | |
| weighty(adjective, heavy) | |
| fat(adjective, strong, rough) | |
| grave(adjective, dull, obscure, lively) | |
| burdensome | |
| deep(adjective, intense) |
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| APA | Smart Define. (2016). light thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/light/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "light thesaurus" https://smartdefine.org/light/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, light thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/light/thesaurus/antonyms>. |
| MLA | Smart Define. "light thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/light/thesaurus/antonyms> |