ADJ.
permanent, plastic, structural
VERB + DEFORMATION
signs
ADV.
such
noun
The act of deforming, or state of being deformed.
plastic deformation
permanent deformation
A transformation; change of shape.
noun — the act of twisting or deforming the shape of something (e.g
noun — a change for the worse
structural deformation
The supervolcano of Yellowstone hasn't erupted in ages, but telltale signs such as deformation of land and earthquakes showcase its activity.
It's a deformation.