(of an action )行为 done as a duty or habit, without real interest, attention or feeling 敷衍的;例行公事般的;潦草的 Oxford Collocations DictionaryPerfunctory is used with these nouns:- nod
Word Originlate 16th cent.: from late Latin perfunctorius ‘careless’, from Latin perfunct- ‘done with, discharged’, from the verb perfungi.