discretion vs discreetness

discretion and discreetness both are nouns.

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

As nouns, discretion and discreetness are synonyms defined as:

discretion and discreetness: knowing how to avoid embarrassment or distress

Other synonyms of discretion include circumspection, prudence.

discretion (noun)	discreetness (noun)
the trait of judging wisely and objectively	subtly skillful handling of a situation
the power of making free choices unconstrained by external agencies	knowing how to avoid embarrassment or distress
knowing how to avoid embarrassment or distress
refined taste; tact
freedom to act or judge on one's own