How do you pronounce "undoubtedly"?

Pronounced //ʌnˈdaʊtɪdli//.

Undoubtedly

Common synonyms include: actually, admittedly, assuredly, beyond doubt, beyond question, certainly.

/ʌnˈdaʊtɪdli/ adv

adv ·Uncommon ·College level

Adverb

1
Without doubt; definitely.
"The cane was undoubtedly of foreign make, for it had a solid silver ferrule at one end, which was not English hall–marked."

Adverb

"Haruyo is undoubtedly under stress during this entrance-examination season."

From Middle English undoutedly, equivalent to undoubted + -ly.