(of a mark, etc.) having no particular shape, or without clear edges

They wear leather jackets and smudgy black eye make-up. 他们穿着皮夹克，化着黑色的烟熏妆。

There was a smudgy photograph, apparently taken at a party, which showed them together. 有一张模糊的照片，明显是在一个聚会上拍摄的，照片上他们在一起。