IPA: /lɪˈtɜːr.dʒɪ.kəl/
KK: /lɪˈtɜr.dʒɪ.kəl/
Related to the formal rituals and ceremonies of a religious service.
The church follows a liturgical calendar that marks important religious events throughout the year.
Liturgical → It is formed from "liturgy" (from Greek "leitourgia", meaning public service or work) and the suffix "-al" (meaning pertaining to). The word "liturgical" refers to anything pertaining to public worship or the rituals of a religious service.
Think of 'liturgy' as a public service in a religious context, and remember that 'liturgical' means related to that public worship.