judiciousness vs discernment

judiciousness and discernment both are nouns.

Word	Noun	Adjective	Verb	Adverb
judiciousness	Yes	No	No	No
discernment	Yes	No	No	No

As nouns, discernment is a hypernym of judiciousness; that is, discernment is a word with a broader meaning than judiciousness:

judiciousness: good judgment
discernment: the mental ability to understand and discriminate between relations

Other hypernyms of judiciousness include judgement, judgment, sagaciousness, sagacity.

judiciousness (noun)	discernment (noun)
the trait of forming opinions by distinguishing and evaluating	the trait of judging wisely and objectively
good judgment	the mental ability to understand and discriminate between relations
	the cognitive condition of someone who understands
	perception of that which is obscure
	delicate discrimination (especially of esthetic values)