distrust vs doubtfulness

distrust and doubtfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
distrust	Yes	No	Yes	No
doubtfulness	Yes	No	No	No

As nouns, doubtfulness is a hypernym of distrust; that is, doubtfulness is a word with a broader meaning than distrust:

Other hypernyms of distrust include doubt, dubiety, dubiousness, incertitude, uncertainty.

distrust (noun)	doubtfulness (noun)
the trait of not trusting others	uncertainty about the truth or factuality or existence of something
doubt about someone's honesty	the state of being unsure of something

distrust (verb)	doubtfulness (verb)
regard as untrustworthy; regard with suspicion; have no faith or confidence in