scrawniness vs inferiority

scrawniness and inferiority both are nouns.

Word	Noun	Adjective	Verb	Adverb
scrawniness	Yes	No	No	No
inferiority	Yes	No	No	No

As nouns, inferiority is a hypernym of scrawniness; that is, inferiority is a word with a broader meaning than scrawniness:

Other hypernyms of scrawniness include low quality.

scrawniness (noun)	inferiority (noun)
the bodily property of lacking flesh	an inferior quality
the property of being stunted and inferior in size or quality	the quality of being a competitive disadvantage
	the state of being inferior