mistrust vs doubt

mistrust and doubt both are nouns.

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

As nouns, doubt is a hypernym of mistrust; that is, doubt is a word with a broader meaning than mistrust:

Other hypernyms of mistrust include doubtfulness, dubiety, dubiousness, incertitude, uncertainty.

As verbs, doubt is a hyponym of mistrust; that is, doubt is a word with a more specific, narrower meaning than mistrust:

mistrust: regard as untrustworthy; regard with suspicion; have no faith or confidence in
doubt: lack confidence in

mistrust (noun)	doubt (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

mistrust (verb)	doubt (verb)
regard as untrustworthy; regard with suspicion; have no faith or confidence in	consider unlikely
	lack confidence in