frisson vs fearfulness

frisson and fearfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
frisson	Yes	No	No	No
fearfulness	Yes	No	No	No

As nouns, fearfulness is a hypernym of frisson; that is, fearfulness is a word with a broader meaning than frisson:

frisson: an almost pleasurable sensation of fright
fearfulness: an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight)

Other hypernyms of frisson include fear, fright.

frisson (noun)	fearfulness (noun)
an almost pleasurable sensation of fright	the trait of being afraid
	an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight)