What does 暗い mean?
暗い is a Japanese adjective meaning “dark, gloomy” in English. It can also be translated as “depressed, dark (in colour), ill-boding” depending on context. It is written as 暗い in kanji, くらい in hiragana, and kurai in romaji. This word is part of JLPT N5 vocabulary.
Example sentence
あたりがもう暗くなっていることに気がついた。
I observed that it had already got dark.