indubitably

Adverb

 * 1) In a manner that leaves no possibility of doubt; undoubtedly.

Usage notes
Currently particularly used as a humorous interjection, particularly in American English, and seen as somewhat affected, if not outright haughty or campy. Compare this use by comedy cartoon  (US, 1947–65).

Translations

 * Chinese:
 * Mandarin:
 * Dutch:, zonder twijfel
 * Finnish:, kiistattomasti
 * French:
 * German:
 * Icelandic: ótvíræðlega, óhrekjanlega
 * Ido:
 * Polish:
 * Russian: ,
 * Swedish: utan tvivel,