IPA: /ˌrɪtʃuˈælɪstɪkli/
KK: /ˌrɪtʃuˈælɪstɪkli/
Performed in a way that follows a set pattern or tradition, often related to ceremonies or customs.
The community gathered ritualistically to celebrate the annual festival.
Ritualistically → It is formed from "ritual" (from Latin "ritualis", meaning relating to rites) and the suffix "-istically" (meaning in a manner relating to). The word "ritualistically" means in a manner that relates to or is characteristic of rituals.
Think of 'ritual' as something related to 'rites' and remember that 'ritualistically' means doing something in a way that is characteristic of those rites.