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.