persuasiveness vs powerfulness

persuasiveness and powerfulness both are nouns.

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

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

persuasiveness: the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty
powerfulness: possession of controlling influence

Other hypernyms of persuasiveness include power.

persuasiveness (noun)	powerfulness (noun)
the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty	possession of controlling influence