List of sui generis synonyms and sui generis related words.
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