Word.ws English Dictionary

undoubtfully

undoubtfully adverb: undoubtedly, without doubt.

Adverb

undoubtfully (comparative more undoubtfully, superlative most undoubtfully)

  1. undoubtedly, without doubt

Forms of undoubtfully

comparativemore undoubtfully
superlativemost undoubtfully

Origin of undoubtfully

From undoubtful + -ly.

Questions about undoubtfully

What does undoubtfully mean?
Undoubtfully means undoubtedly, without doubt.
What part of speech is undoubtfully?
Undoubtfully is an adverb.

Words near undoubtfully in the dictionary

  1. undoubtably
  2. undoubted
  3. undoubtedly
  4. undoubtedness
  5. undoubtful
  6. undoubtfully
  7. undoubtfulness
  8. undoubting
  9. undoubtingly
  10. undoubtingness
  11. undoubtlessly

Source and license

Adapted from Wiktionary: undoubtfully (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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