brutish or beastly character or behavior; beastliness.

indulgence in beastlike appetites, instincts, impulses, etc.

an instance of bestial character or behavior.

sexual relations between a person and an animal; sodomy.

noun

depravity , flagitiousness , immorality , perversion , turpitude , vice , villainousness , villainy , wickedness , barbarity , brutality , inhumanity , savagery , truculence , truculency