The adjective “perfunctory” describes something done purely out of routine or obligation, characterized by a complete lack of genuine effort, care, or interest. “Perfunctory” comes from the Latin “perfungi,” meaning “to accomplish, get through with.” The Latin “fungi,” meaning “to perform,” is the root of “function,” meaning “the action for which a person or thing is specially fitted or used or for which a thing exists.” Someone who is bored at their job might carry out their function in a perfunctory manner.