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.