Dull, boring, tedious; long-winded in expression.
Heavy, massive, weighty.
Clumsy, unwieldy, or slow, especially due to weight.
Characterized by or associated with pondering.
Serious, onerous, oppressive.
dulled or intentionally blunt.
out of focus; blurry.
To sharpen (an image) by creating a blurred ("unsharp") negative as a mask, and then combining that mask with the original.