ethnical vs cultural

ethnical and cultural both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ethnical	No	Yes	No	No
cultural	No	Yes	No	No

As adjectives, ethnical and cultural are synonyms defined as:

ethnical and cultural: denoting or deriving from or distinctive of the ways of living built up by a group of people

Other synonyms of ethnical include ethnic.

ethnical (adjective)	cultural (adjective)
denoting or deriving from or distinctive of the ways of living built up by a group of people	of or relating to the shared knowledge and values of a society
	of or relating to the arts and manners that a group favors
	relating to the raising of plants or animals
	denoting or deriving from or distinctive of the ways of living built up by a group of people