Expressions (phrases, clauses, etc.), I-adjective (keiyoushi)
being second to none; being in a league of one's own
Idiomatic expressionfrom the Chinese custom where the rightmost seat was the seat of honorsee 右に出る者はいない
Also written 右に出る者はない【みぎにでるものはない】、右に出るものは無い【みぎにでるものはない】