Smudgy

The writing is smudgy.

Source: tatoeba (8008260)

Johnny came, smudgy and hungry, surprised to find that his old friend, big man as he was, seemed to be scarcely so big as when he saw him last, eighteen months ago.

Source: tatoeba (11128093)

As you know, an ordinary unhairy face like yours or mine simply gets a bit smudgy if it is not washed often enough, and there's nothing so awful about that. But a hairy face is a very different matter.

Source: wiktionary

Pierre lighted his pipe and immediately the air about him because heavy, not with the aromatic perfume of choice Havanna but with a smudgy fog that made John cough. The cough was genuine, but John emphasized it a little as a suggestion that the coarse odor was anything but welcome- without, however, any appreciable result.

Source: wiktionary