performed merely as a routine duty; hasty and superficial: perfunctory courtesy.
2.
lacking interest, care, or enthusiasm; indifferent or apathetic: In his lectures he reveals himself to be merely a perfunctory speaker.
Origin: 1575–85; < LL perfūnctōrius negligent, superficial, deriv. of perfungī to do one's job, be done, equiv. to per-per-+ fung-, base of fungī to perform, function+ -tōrius-tory1
[per-fuhngk-tuh-ree] 
