dogmatic

adj

1.
characterized by assertion of unproved or unprovable principles
dogmatical
Derived from:
dogma dogmatism
2.
of or pertaining to or characteristic of a doctrine or code of beliefs accepted as authoritative
Pertainym:
dogma
Derived from:
dogma
3.
relating to or involving dogma
Pertainym:
dogma
Derived from:
dogma