ritualizedadjective
UK usually ritualised uk/ˈrɪtʃ.u.ə.laɪzd//ˈrɪtʃ.u.ə.laɪzd/always done in the same way, or consisting of a set of fixed actions performed regularly :
Anthropologists tell us ritualized greetings are key components of all cultures.
Sumo is a highly ritualized, centuries-old sport.