doctrinal UK /ˈdɒktɹɪnəl/US /ˈdɑktɹɪnəl/adjective 2noun 1forms 1 adjective2 •Of, relating to, involving, belonging to or concerning a doctrine.[…]yet inevitably, [JD] Vance is already giving menacing doctrinal advice to the pope as part of the multi-theatre fallout of Operation Epic Facepalm. — 2026 •(no longer used) Didactic.The word of God serveth no otherwise than in the nature of a doctrinal instrument. — 1594 noun1 •A matter of doctrine, or system of doctrines.His Teaching is not to teach you the Doctrinals of Salvation and of the Son, for he leaves that to Ministers, and to the Bible, to teach you the Doctrinals only in a doctrinal way — 1680 formsdoctrinals