smartness vs hurting

smartness and hurting both are nouns.

Word	Noun	Adjective	Verb	Adverb
smartness	Yes	No	No	No
hurting	Yes	No	No	No

As nouns, hurting is a hypernym of smartness; that is, hurting is a word with a broader meaning than smartness:

smartness: a kind of pain such as that caused by a wound or a burn or a sore
hurting: a symptom of some physical hurt or disorder

Other hypernyms of smartness include pain.

smartness (noun)	hurting (noun)
elegance by virtue of being fashionable	a symptom of some physical hurt or disorder
liveliness and eagerness
intelligence as manifested in being quick and witty
a kind of pain such as that caused by a wound or a burn or a sore