"We'll win no victory with blades too dull to cut butter!"

The idea cut into Paul like a dull blade.

The voice was like the scraping of a dull blade on parchment.

We are three thousand sabres and not a dull blade.

He holds a dull dark blade at the girl's throat.

His lower belly had been opened also, as if with a dull blade in the beginning of a disembowelment.

You are more likely to slip if pushing too hard against a dull blade.

She heard the whip and stopped it with her dull blade.

The dull blade seemed to make almost no impression.

Children's scissors, used only on paper, have dull blades to ensure safety.