WordNet sense 1 (far beyond what is usual in magnitude or degree):

exceeding, prodigious, surpassing, Olympian

WordNet sense 2 (beyond what is ordinary or usual; highly unusual or exceptional or remarkable):

extraordinary

WordNet sense 3 (departing from the normal in e.g. intelligence and development):

abnormal

WordNet sense 4 (surpassing what is common or usual or expected):

particular, special, especial

WordNet sense 5 (not common or ordinarily encountered; unusually great in amount or remarkable in character or kind):

uncommon