unnatural vs affected

unnatural and affected both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unnatural	No	Yes	No	No
affected	No	Yes	No	No

As adjectives, unnatural and affected are synonyms defined as:

unnatural and affected: speaking or behaving in an artificial way to make an impression

unnatural (adjective)	affected (adjective)
not in accordance with or determined by nature; contrary to nature	acted upon; influenced
not normal; not typical or usual or regular or conforming to a norm	speaking or behaving in an artificial way to make an impression
speaking or behaving in an artificial way to make an impression	being excited or provoked to the expression of an emotion