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dark; gloomy; murky
depressed; dispirited; down in the dumps; dark (mood)
dark (in colour); dull
ill-boding; dark (e.g. past); suspicious
unlikely (to succeed); hopeless; unpromising
unfamiliar (with); ignorant (of)
部屋が昏くて何も見えない。
The room is dark and I can't see anything.
日が沈んで辺りが昏くなった。
The sun set and the area became dark.
昏い廊下を手探りで進んだら出口が見つかった。
I groped my way through the dark hallway and found the exit.