smudgy

smudge +‎ -y

smudgy (comparative smudgier, superlative smudgiest)

1. Marked with smudges.
   • 1979, Roald Dahl, The Twits

     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.

2. Like a thick smoke (such as is emitted by a smudge pot).