subjectivity vs sound judgment

subjectivity and sound judgment both are nouns.

Word	Noun	Adjective	Verb	Adverb
subjectivity	Yes	No	No	No
sound judgment	Yes	No	No	No

As nouns, sound judgment is a hypernym of subjectivity; that is, sound judgment is a word with a broader meaning than subjectivity:

subjectivity: judgment based on individual personal impressions and feelings and opinions rather than external facts
sound judgment: the capacity to assess situations or circumstances shrewdly and to draw sound conclusions

Other hypernyms of subjectivity include judgement, judgment, perspicacity, sound judgement.

subjectivity (noun)	sound judgment (noun)
judgment based on individual personal impressions and feelings and opinions rather than external facts	the capacity to assess situations or circumstances shrewdly and to draw sound conclusions