If you describe something as unequalled, you mean that it is greater, better, or more extreme than anything else of the same kind.
例句
This record figure was unequalled for 13 years...這項紀錄保持了13年，無人能破。...an unequalled level of service.最上乘的服務
英漢詞典釋義
adj.
無比的;無雙的
an unequalled reputation無與倫比的聲譽
英英詞典釋義
Adjective
1. radically distinctive and without equal;
"he is alone in the field of microbiology""this theory is altogether alone in its penetration of the problem""Bach was unique in his handling of counterpoint""craftsmen whose skill is unequaled""unparalleled athletic ability""a breakdown of law unparalleled in our history"