dubiousness vs doubt

dubiousness and doubt both are nouns.

Word	Noun	Adjective	Verb	Adverb
dubiousness	Yes	No	No	No
doubt	Yes	No	Yes	No

As nouns, dubiousness and doubt are synonyms defined as:

dubiousness and doubt: uncertainty about the truth or factuality or existence of something

Other synonyms of dubiousness include doubtfulness, question.

As nouns, dubiousness and doubt are synonyms defined as:

Other synonyms of dubiousness include doubtfulness, dubiety, incertitude, uncertainty.

dubiousness (noun)	doubt (noun)
uncertainty about the truth or factuality or existence of something	uncertainty about the truth or factuality or existence of something
the state of being unsure of something	the state of being unsure of something

dubiousness (verb)	doubt (verb)
	consider unlikely
	lack confidence in