unparalleled vs unequalled

unparalleled and unequalled both are adjectives.

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

As adjectives, unparalleled and unequalled are synonyms defined as:

Other synonyms of unparalleled include alone, unequaled, unique.

unparalleled (adjective)	unequalled (adjective)
radically distinctive and without equal	radically distinctive and without equal