(a.) of his or its own kind.

another beyond compare beyond comparison breakaway easily first else facile princeps immortal incomparable inimitable invincible matchless not that sort not the same not the type nulli secundus of a sort of another sort of sorts offbeat other other than otherwise peculiar peerless rare recherche second to none special unapproachable unapproached unbeatable uncommon uncustomary undreamed-of unequaled unexampled unexcelled unexpected unfamiliar unheard-of unique unmatchable unmatched unordinary unparagoned unparalleled unpeered unrivaled unsurpassable unsurpassed unthought-of unusual unwonted without equal without parallel