Perfunctory/pərˈfʌŋktəri/ Definition 1 of 2Pro Tip 1/3Emotionless Execution 'Perfunctory' often implies a lack of emotion or interest in performing an action. His handshake was perfunctory and cold. Pro Tip 2/3Duty without Zeal The word suggests someone is doing something out of obligation, not because they want to. He delivered the speech with perfunctory enthusiasm. Pro Tip 3/3Minimal Effort Use 'perfunctory' to describe an action done with the least effort necessary. She cleaned the room in a perfunctory way, missing many spots.