pitch-black
01
真っ暗な, 漆黒の
without any light
例
The cave was pitch-black; not a single ray of light penetrated its depths.
洞窟は真っ暗だった; 光の一筋もその深みに届かなかった。
In the middle of the night, the forest became pitch-black, making it difficult to see anything.
真夜中に、森は真っ暗になり、何も見えなくなりました。
