IPA: //ˈskæbrəsnəs//
KK: /ˈskæbrəsnəs/
The quality of being rough or scabby, often used to describe a surface that is uneven or has many small bumps.
The scabrousness of the tree bark made it difficult to climb.
Scabrousness is formed from "scabrous" (from Latin "scabrosus", meaning rough or scabby) and the suffix "-ness" (meaning the state or quality of). The word describes the quality of being rough or having a scabby texture.
Think of something that is 'rough' or 'scabby' — that's what scabrousness means, and the '-ness' indicates the state of being that way.