IPA: /ˈbiːstlɪnəs/
KK: /ˈbistlɪnəs/
The condition of being cruel, savage, or resembling a wild animal.
The beastliness of his actions shocked everyone around him.
Beastliness → It is formed from "beast" (from Old French *beste*, meaning a wild animal) and "-liness" (meaning the quality of being). The word "beastliness" refers to the quality of being like a beast, often implying savagery or brutality.
Think of the word 'beast' which refers to a wild animal, and remember that 'beastliness' means the quality of being like a wild animal.