tangential vs digressive

tangential and digressive both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tangential	No	Yes	No	No
digressive	No	Yes	No	No

As adjectives, tangential and digressive are synonyms defined as:

tangential (adjective)	digressive (adjective)
of or relating to or acting along or in the direction of a tangent	(of e.g. speech and writing) tending to depart from the main point or cover a wide range of subjects
of superficial relevance if any	of superficial relevance if any