The phrase "a dull blade" is correct and usable in written English.
It can be used to describe a knife or cutting tool that is not sharp and therefore less effective for cutting.
Example: "When preparing the vegetables, I realized I was using a dull blade, which made the task much more difficult."
Alternatives: "a blunt knife" or "an unsharpened edge".
But her prospects shouldn't in any way suggest that she is a dull blade.
Beware a dull blade; you could end up tearing the stencil.
Like a dull blade with its edge Honed bright, Lough Beg half shines under the haze".
A dull blade is a dangerous hindrance that makes each job messier and more difficult than the last.
And the results -- bits of vegetables that burst in the mouth, as opposed to the mush yielded by a dull blade or a blender, will reward the effort.
Because neither of them wants to end the marriage, their seesaw battle is a long, drawn-out affair — a case, as we Chinese would say, of "carving meat with a dull blade".
Practice with either a dulled blade or with the opposite handle so you don't cut yourself starting off, because when starting off with the safe handle there are several points where your finger will come between the blade and the bite handle, which you're going to be snapping the blade back into.
After incision was sutured, a closed fracture was produced at the midshaft of the right femur using a custom-made 3-point bending device, with a metal dull blade (weighted 500 g) dropping from a height of 35 cm, and X-ray was taken to confirm the fracture.
--Defense cuts provided leverage: One of the main reasons we ended up with sequestration was because the lowering of the spending levels on defense that was supposed to be the sword of Damocles turned out to be a very dull blade.
That Palin is an exceedingly dull blade goes without saying, but even she must have noted the timing of Fox's decision.
Typically, they are plastic, and have a large, flat, dull blade on one end, and a handle on the other, sometimes combined with a brush.
