uncanny vs preternatural

uncanny and preternatural both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncanny	No	Yes	No	No
preternatural	No	Yes	No	No

As adjectives, uncanny and preternatural are synonyms defined as:

uncanny (adjective)	preternatural (adjective)
surpassing the ordinary or normal	surpassing the ordinary or normal
suggesting the operation of supernatural influences	existing outside of or not in accordance with nature