Smudge
Definition 1 of 4
Pro Tip 1/2
Unintentional Marks
Refers to marks made accidentally, often annoying and unwanted. Be careful with the pen, you might leave a smudge on the document.
Pro Tip 2/2
Visual Clarity
A smudge usually suggests a lack of clarity or neatness on a surface. The window was covered in smudges after the rain.