In which direction should hair be cut for a blunt cut?

A blunt cut is characterized by a straight-across technique where the hair is cut evenly at the same length, without layering or texturizing. This method provides a solid and defined edge to the hair, creating a sharp silhouette and giving the hair a full, healthy appearance.

When cutting hair straight across, the stylist typically sections the hair and ensures that each strand is cut to the same length at the bottom, maintaining this uniformity throughout. This cutting style is commonly used for bob hairstyles and other looks where a clean finish is desired.

The other options such as diagonal or slightly angled imply an inclination in the cut that introduces layers or a graduation of lengths, which contradicts the concept of a blunt haircut. Curling upwards also does not apply, as it refers to styling rather than cutting techniques. Thus, cutting straight across is fundamental for achieving the classic blunt cut look.