The phrase 'played hooky' means to miss school or work, often without permission. Antonyms for 'played hooky' could include 'attendance', 'duty', 'responsibility', 'commitment' and 'loyalty'. These words all convey the sense of showing up and fulfilling one's obligations, rather than shirking them. Alternatively, words like 'discipline', 'conscientiousness' and 'diligence' might be used to suggest the opposite of the irresponsible and carefree attitude associated with playing hooky. Whatever antonyms one chooses for 'played hooky', they emphasize the importance of being present, reliable and conscientious, whether at school or work. So, it is always better to be present with responsible behavior.