unequalled vs unique

unequalled and unique both are adjectives.

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

As adjectives, unequalled and unique are synonyms defined as:

Other synonyms of unequalled include alone, unequaled, unparalleled.

unequalled (adjective)	unique (adjective)
radically distinctive and without equal	radically distinctive and without equal
	the single one of its kind
	(followed by `to') applying exclusively to a given category or condition or locality
	highly unusual or rare but not the single instance