The quality of being difficult or unpleasant to experience.
The quality of being harsh or severe in the way one speaks or behaves toward people.
An area that protrudes from a surface.
A section of a fault line with high friction, such that there is no movement along this part of the fault except during an earthquake.
The quality of having a rough or uneven surface.
Something that is harsh and difficult to endure.
The state or quality of being stony.