patristic vs patristical

patristic and patristical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
patristic	No	Yes	No	No
patristical	No	Yes	No	No

As adjectives, patristic and patristical are synonyms defined as:

patristic and patristical: of or relating to the writings of the early church fathers

patristic (adjective)	patristical (adjective)
of or relating to the writings of the early church fathers	of or relating to the writings of the early church fathers