separateness vs discreteness

separateness and discreteness both are nouns.

Word	Noun	Adjective	Verb	Adverb
separateness	Yes	No	No	No
discreteness	Yes	No	No	No

As nouns, separateness and discreteness are synonyms defined as:

Other synonyms of separateness include distinctness, severalty.

separateness (noun)	discreteness (noun)
the quality of being not alike; being distinct or different from that otherwise experienced or known	the state of being several and distinct
political independence
the state of being several and distinct