archetypal vs archetypical

archetypal and archetypical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
archetypal	No	Yes	No	No
archetypical	No	Yes	No	No

As adjectives, archetypal and archetypical are synonyms defined as:

archetypal and archetypical: representing or constituting an original type after which other similar things are patterned

Other synonyms of archetypal include prototypal, prototypic, prototypical.

archetypal (adjective)	archetypical (adjective)
representing or constituting an original type after which other similar things are patterned	representing or constituting an original type after which other similar things are patterned