canonical

Adjective

appearing in a biblical canon; "a canonical book of the Christian New Testament"

Adjective

of or relating to or required by canon law

Adjective

reduced to the simplest and most significant form possible without loss of generality; "a basic story line"; "a canonical syllable pattern"

Adjective

conforming to orthodox or recognized rules; "the drinking of cocktails was as canonical a rite as the mixing"- Sinclair Lewis