canonic, canonical -- (appearing in a biblical canon; "a canonical book of the Christian New Testament")
canonic, canonical -- (of or relating to or required by canon law)
basic, canonic, canonical -- (reduced to the simplest and most significant form possible without loss of generality; "a basic story line"; "a canonical syllable pattern")
canonic, canonical, sanctioned -- (conforming to orthodox or recognized rules; "the drinking of cocktails was as canonical a rite as the mixing"- Sinclair Lewis)