The noun form was from French doctrinal; the adjective form was perhaps from Late Latin doctrīnālis, from doctrīna.

• (British) IPA: /ˈdɒktɹɪnəl/, /dɒkˈtɹaɪnəl/
• (America) IPA: /ˈdɑktɹɪnəl/, /dɑkˈtɹaɪnəl/

1. Of, relating to, involving, belonging to or concerning a doctrine.
2. (obsolete) Didactic.
   • 1594–1597, Richard Hooker, edited by J[ohn] S[penser], Of the Lawes of Ecclesiastical Politie, […], London: […] Will[iam] Stansby [for Matthew Lownes], published 1611, →OCLC ↗, (please specify the page):

     The word of God serveth no otherwise than in the nature of a doctrinal instrument.

• docent
• docile
• doctor
• doctorate
• doctrinaire
• doctrine
• document
• indoctrinate

• French: doctrinal
• German: doktrinal
• Italian: dottrinale
• Portuguese: doutrinal, doutrinário
• Spanish: doctrinal

doctrinal (plural doctrinals)

1. A matter of doctrine, or system of doctrines.
   • a. 1680, Thomas Goodwin, The Object and Acts of Justifying Faith:

     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

   • 1531, Thomas Elyot, edited by Ernest Rhys, The Boke Named the Governour […] (Everyman's Library), London: J[oseph] M[alaby] Dent & Co; New York, N.Y.: E[dward] P[ayson] Dutton & Co, published [1907], →OCLC ↗:

     The Doctrinal of Princes