Difference between Perfunctory and Casual

Perfunctory

Part of speech: adjective

Definition: Performed out of routine and with little care.

Casual

Part of speech: noun

Definition: A worker who is only working for a company occasionally, not as its permanent employee.

Part of speech: adjective

Definition: Happening by chance.Coming without regularity; occasional or incidental.Employed irregularlyCareless.Happening or coming to pass without design.Informal, relaxed.Designed for informal use.

Example sentence: The true nature of evil is that it is so very casual.