undoubtedly
adverbUK /ʌnˈdaʊtɪdli/
US /ʌnˈdaʊtɪdli/
You say this when you are sure something is true.
She is undoubtedly the fastest runner in our class.
OTHER MEANINGS
2. Without any doubt or question; used to emphasize a statement.
The team will undoubtedly win the championship this year.
3. In a way that is accepted as true by everyone.
He is undoubtedly the best person for the job.
4. Used to show strong agreement or certainty about something.
Undoubtedly, we need to act now to solve this problem.