dogmatical vs dogmatic

dogmatical and dogmatic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dogmatical	No	Yes	No	No
dogmatic	No	Yes	No	No

As adjectives, dogmatical and dogmatic are synonyms defined as:

dogmatical and dogmatic: characterized by assertion of unproved or unprovable principles

dogmatical (adjective)	dogmatic (adjective)
characterized by assertion of unproved or unprovable principles	relating to or involving dogma
	of or pertaining to or characteristic of a doctrine or code of beliefs accepted as authoritative
	characterized by assertion of unproved or unprovable principles