irresolution vs dubiety

irresolution and dubiety both are nouns.

Word	Noun	Adjective	Verb	Adverb
irresolution	Yes	No	No	No
dubiety	Yes	No	No	No

As nouns, dubiety is a hypernym of irresolution; that is, dubiety is a word with a broader meaning than irresolution:

irresolution: doubt concerning two or more possible alternatives or courses of action
dubiety: the state of being unsure of something

Other hypernyms of irresolution include doubt, doubtfulness, dubiousness, incertitude, uncertainty.

irresolution (noun)	dubiety (noun)
the trait of being irresolute; lacking firmness of purpose	the state of being unsure of something
doubt concerning two or more possible alternatives or courses of action