IPA: /pərˈfʌŋk.tər.i.nəs/
KK: /pərˈfʌŋk.tər.i.nəs/
The quality of doing something with little effort or care, often just to get it done without real interest or attention.
His perfunctoriness in completing the project showed that he was not truly invested in the work.
Perfunctoriness → It is formed from "perfunctorius" (from Latin, meaning done merely as a duty) and the suffix "-ness" (meaning the state or quality of). The word refers to the quality of being done with little effort or care, often as a routine task.
Think of the Latin root meaning 'done merely as a duty' to remember that 'perfunctoriness' describes the quality of doing something with minimal effort or care.
No commonly confused words.