1. 黑暗的;昏暗的;天黑的
When it is dark, there is not enough light to see properly, for example because it is night.
e.g. When she awoke it was evening and already dark...
她醒来时已是晚上,天已经黑了。
e.g. It was too dark inside to see much...
里面太暗,看不太清。