irresolution vs uncertainty

irresolution and uncertainty both are nouns.

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

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

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

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

irresolution (noun)	uncertainty (noun)
the trait of being irresolute; lacking firmness of purpose	being unsettled or in doubt or dependent on chance
doubt concerning two or more possible alternatives or courses of action	the state of being unsure of something