strength vs powerfulness

strength and powerfulness both are nouns.

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

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

Other hypernyms of strength include power.

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

strength: 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 strength include power.

strength (noun)	powerfulness (noun)
the property of being physically or mentally strong	possession of controlling influence
an asset of special worth or utility
permanence by virtue of the power to resist stress or force
the amount of energy transmitted (as by acoustic or electromagnetic radiation)
capability in terms of personnel and materiel that affect the capacity to fight a war
physical energy or intensity
capacity to produce strong physiological or chemical effects
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
the condition of financial success