undoubted

1. ADJ You can use undoubted to emphasize that something exists or is true. 無疑的[強調]

The event was an undoubted success. 這次活動是一個無可置疑的成功。

...a man of your undoubted ability. …一個擁有你這樣無可置疑的能力的人。

2. undoubtedlyADV 無疑地

Undoubtedly, political and economic factors have played their part. 毫無疑問，政治和經濟因素起了作用。