Undoubtedly | Meaning, Definition & Examples

Undoubtedly is an adverb meaning “without doubt” or “certainly.” It’s a somewhat less formal alternative to “indubitably.”

It can be used at the beginning, middle, or end of a sentence to express a viewpoint or evaluation. It can also be used by itself in response to a question, or as a sentence adverb modifying the whole sentence.

Examples: Undoubtedly in a sentence
This is undoubtedly the best dessert I’ve ever eaten.

Undoubtedly, there’s going to be a storm.

Undoubtedly!

Try the Scribbr Grammar Checker

Undoubtedly vs. undoubtably

“Undoubtably” is often used to mean “without doubt” or to refer to something that can’t possibly be doubted. While “undoubtably” is somewhat common in everyday speech, it’s not accepted as a real word by most dictionaries and is best avoided in formal or academic writing. Instead, use undoubtedly.

Examples: Undoubtedly vs. undoubtably
  • Undoubtedly, the research has practical implications.

Other interesting language articles

If you want to know more about commonly confused words, definitions, and differences between US and UK spellings, make sure to check out some of our other language articles with explanations, examples, and quizzes.

Frequently asked questions

What is a synonym for “undoubtedly”?

Some synonyms of undoubtedly include:

  • Assuredly
  • Definitely
  • Doubtless(ly)
  • Indubitably
  • Undeniably
  • Unquestionably
  • Without doubt
Is “undoubtably” a word?

“Undoubtably” is often used interchangeably with undoubtedly to mean “certainly” or to refer to something that can’t possibly be doubted. But “undoubtably” is not regarded as a real word by most dictionaries and should be avoided in formal or academic writing.

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Ryan, E. (2023, February 05). Undoubtedly | Meaning, Definition & Examples. Scribbr. Retrieved February 6, 2023, from https://www.scribbr.com/definitions/undoubtedly/

Is this article helpful?
Eoghan Ryan

Eoghan has a lot of experience with theses and dissertations at bachelor's, MA, and PhD level. He has taught university English courses, helping students to improve their research and writing.