ETYM Latin perfunctorius, from perfunctus dispatched, p. p. of perfungi to discharge, dispatch; per (see Per) + fungi to perform.
1. Done merely to get rid of a duty; performed mechanically and as a thing of rote; done in a careless and superficial manner.
2. Hence: Mechanical; indifferent; listless; careless.
3. Related to Function.
4. Mechanical, routine, cursory.