undogmatic vs undogmatical

undogmatic and undogmatical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
undogmatic	No	Yes	No	No
undogmatical	No	Yes	No	No

As adjectives, undogmatic and undogmatical are synonyms defined as:

undogmatic and undogmatical: unwilling to accept authority or dogma (especially in religion)

Other synonyms of undogmatic include free-thinking, latitudinarian.

undogmatic (adjective)	undogmatical (adjective)
unwilling to accept authority or dogma (especially in religion)	unwilling to accept authority or dogma (especially in religion)