If you describe a fact or opinion as undisputed, you are trying to persuade someone that it is generally accepted as true or correct.
例句
...the undisputed fact that he had broken the law.他違反了法律這一毫無疑問的事實...his undisputed genius.他無可爭議的天賦
ADJ
公認的；當之無愧的
If you describe someone as the undisputed leader or champion, you mean that everyone accepts their position as leader or champion.
例句
Seles won 10 tournaments, and was the undisputed world champion...塞萊斯拿到了10個錦標賽冠軍，是當之無愧的世界冠軍。At 78 years of age, he's still undisputed leader of his country.78歲的他仍是他們國家公認的領袖。
英漢詞典釋義
adj.
無可爭辯的;無異議的
the undisputed leader in her field在她的業界中無可爭議的領軍人物
英英詞典釋義
Adjective
1. generally agreed upon; not subject to dispute;
"the accepted interpretation of the poem""an accepted theory"