autarkic vs autarkical

autarkic and autarkical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
autarkic	No	Yes	No	No
autarkical	No	Yes	No	No

As adjectives, autarkic and autarkical are synonyms defined as:

autarkic (adjective)	autarkical (adjective)
of countries; not relying on imports	of or relating to or characterized by autarchy
	of countries; not relying on imports