digressive vs tangential

digressive and tangential both are adjectives.

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

As adjectives, digressive and tangential are synonyms defined as:

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