doubtlessly
US /ˈdaʊt.ləs.li/
UK /ˈdaʊt.ləs.li/
副詞
1.
間違いなく
used to mean that you are certain that something is true or will happen:
例:
•
This was doubtlessly a major error.
Lingolandでこの単語を学ぶ
間違いなく
used to mean that you are certain that something is true or will happen: