perfunctory

Perfunctory means done as part of a routine or duty. If you give someone a gift and they look at it like it's roadkill and say nothing about it but a perfunctory "thank you," you might not be giving them another one anytime soon.

A person who does something in a perfunctory way shows little enthusiasm or interest in what they are doing. Many of our everyday greetings are perfunctory. For example, when we say hello and how are you, it's usually done out of habit. Perfunctory is from Latin perfunctus, from perfungi "to get through with, perform," formed from the Latin prefix per- "completely" plus fungi "to perform."

Definitions of perfunctory
1

adj hasty and without attention to detail; not thorough

perfunctory courtesy”
Synonyms:
casual, cursory, passing
careless
marked by lack of attention or consideration or forethought or thoroughness; not careful

adj as a formality only

Synonyms:
pro forma
formal
being in accord with established forms and conventions and requirements (as e.g. of formal dress)

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