unusual vs unique

unusual and unique both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unusual	No	Yes	No	No
unique	No	Yes	No	No

unusual (adjective)	unique (adjective)
not usual or common or ordinary	radically distinctive and without equal
being definitely out of the ordinary and unexpected; slightly odd or even a bit weird	the single one of its kind
not commonly encountered	(followed by `to') applying exclusively to a given category or condition or locality
	highly unusual or rare but not the single instance