Definition
Pitch-dark is synonymous with 'pitch-black,' describing something that is completely and utterly dark, with no light whatsoever. It emphasizes the intensity of the darkness, suggesting a total absence of illumination. Think of it as being in a closed closet with no light seeping in. It's more emphatic than simply saying 'dark'; it implies an almost tangible darkness. Picture a moonless night in the middle of a forest.