unsharp adjective 3verb 1forms 5 adjective3 •Not sharp. •Dulled or intentionally blunt. •Out of focus; blurry. verb1 •To sharpen (an image) by creating a blurred ("unsharp") negative as a mask, and then combining that mask with the original. formsunsharped · unsharping · unsharps · more unsharp · most unsharp