disposal vs powerfulness

disposal and powerfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
disposal	Yes	No	No	No
powerfulness	Yes	No	No	No

As nouns, powerfulness is a hypernym of disposal; that is, powerfulness is a word with a broader meaning than disposal:

Other hypernyms of disposal include power.

disposal (noun)	powerfulness (noun)
the act or means of getting rid of something	possession of controlling influence
a method of tending to or managing the affairs of some group of people (especially the group's business affairs)
a kitchen appliance for disposing of garbage
the power to use something or someone