IPA: /ˈdɒktrɪnəl/
KK: /ˈdɒktrɪnəl/
Related to a set of beliefs or principles, especially in a religious or political context.
The church's doctrinal teachings guide the beliefs of its members.
Comparative: more doctrinal
Superlative: most doctrinal
Doctrinal → It is formed from "doctrina" (meaning teaching or doctrine) and the suffix "-al" (meaning pertaining to). The word "doctrinal" refers to something that is related to or based on a doctrine or teaching.
Think of 'doctrine' as a set of teachings, and remember that 'doctrinal' means pertaining to those teachings.