noun
in the dark; in darkness
Often used in the set phrase 暗中模索 (あんちゅうもさく, 'groping in the dark') to describe a situation where one is acting without clear guidance or information. As a standalone noun, it is somewhat literary.
暗中模索の状態が続いている。
We are still groping in the dark.
彼は暗中で手探りで進んだ。
He groped his way forward in the dark.