good sense vs sagaciousness

good sense and sagaciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
good sense	Yes	No	No	No
sagaciousness	Yes	No	No	No

As nouns, sagaciousness is a hypernym of good sense; that is, sagaciousness is a word with a broader meaning than good sense:

good sense: sound practical judgment
sagaciousness: the mental ability to understand and discriminate between relations

Other hypernyms of good sense include discernment, judgement, judgment, sagacity.

good sense (noun)	sagaciousness (noun)
sound practical judgment	the trait of forming opinions by distinguishing and evaluating
	the mental ability to understand and discriminate between relations