Undoubtedly | Meaning, Definition & Examples

The adverb undoubtedly means “definitely” or “without doubt.” It can be used to modify a whole sentence as well as a verb, adjective or another adverb.

You can use “undoubtedly” as part of a short response to a question or statement.

It is a less formal synonym of the word “indubitably.”

The “b” sound in undoubtedly is silent (i.e., you do not pronounce it).

Examples: Undoubtedly used in a sentence
Undoubtedly, we should continue pursuing the same strategy.

The growth in online shopping will undoubtedly continue.

Yes, undoubtedly so.

Undoubtedly vs undoubtably

“Undoubtably” is commonly used to mean undoubtedly, however this is considered non-standard usage (i.e., a mistake).

“Undoubtably” is not listed as a word in dictionaries of modern English.

It is therefore best to avoid it in formal and academic writing.

Examples: Undoubtedly vs undoubtably
  • As you undoubtedly know, that is a disputed fact.
  • As you undoubtably know, that is a disputed fact.

Undoubted

The word undoubted is an adjective meaning “not doubted” or “unquestioned.” You use it to highlight that something is true.

It often combines with the words “success,” and “fact.”

Examples: Undoubted in a sentence
The initiative has been an undoubted success story of recent cross-border cooperation.

It is not a theory but an undoubted historical fact.

However, in this film the director fails to harness her undoubted talent.

Frequently asked questions about undoubtedly

Is undoubtably a word?

“Undoubtably” is not listed as a word in dictionaries of modern English.

While many people use the word “undoubtably” to mean undoubtedly, this is considered nonstandard usage (i.e., a mistake).

It is therefore best to avoid using “undoubtably” in formal and academic writing.

The QuillBot Grammar Checker can help ensure your writing is error-free.

What does undoubtly mean?

“Undoubtly” is a misspelling of the adverb undoubtedly, which means “definitely” or “without doubt.”

The QuillBot Grammar Checker can help ensure your writing is error-free.

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Tom Challenger, BA

Tom holds a teaching diploma and is an experienced English language teacher, teacher trainer, and translator. He has taught university courses and worked as a teacher trainer on Cambridge CELTA courses.