The word "murks" can also be referred to as haze, mist, fog, or gloom. These synonyms indicate a state of darkness or obscurity that heavily obscures visibility. Other options for the word "murks" could include dimness, shadows, or opacity. These words all refer to a lack of light and clarity, which can cause difficulties when trying to navigate a space or when trying to clearly see objects. In general, the word "murks" tends to have a negative connotation, as it implies a lack of clarity and a sense of confusion. However, synonyms like haze and mist can also suggest a feeling of mystery or intrigue.