discretion vs perceptiveness

discretion and perceptiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
discretion	Yes	No	No	No
perceptiveness	Yes	No	No	No

As nouns, perceptiveness is a hypernym of discretion; that is, perceptiveness is a word with a broader meaning than discretion:

Other hypernyms of discretion include appreciation, discernment, taste.

discretion (noun)	perceptiveness (noun)
the trait of judging wisely and objectively	the quality of insight and sympathetic understanding
the power of making free choices unconstrained by external agencies	delicate discrimination (especially of esthetic values)
knowing how to avoid embarrassment or distress	perception of that which is obscure
refined taste; tact	a feeling of understanding
freedom to act or judge on one's own