无疑肯定英文怎么说

"无疑"在英语中可以说为"undoubtedly"或"without a doubt"。

"Undoubtedly" 来源于拉丁语 "undubitatus"，它的意思是"毫无疑问"。

例句：

Undoubtedly, this is the best restaurant in town. (毫无疑问，这是镇上最好的餐馆。)
Without a doubt, he is the most talented player on the team. (毫无疑问，他是队中最有才华的球员。)