descriptive · limitless reaches; vast and expansive in scale

浑茫的大海在夜色中显得深不可测。

vague, blurred, or confused in appearance or thought

远处的高山在浓雾中一片浑茫。

the dark ages before civilization or the chaotic state before the creation of the world

传说在浑茫的太古时代，神灵创造了万物。