different between unaware vs unawareness

English

un- +? aware

unaware (comparative more unaware, superlative most unaware)

Not aware or informed; lacking knowledge.
I'm unaware of the answer to that question.
Luckily, she was unaware that I'd spent the last five years in prison.
- 1989, Journal of contemporary psychotherapy, Volume 19
  The more unaware the self is of other selves, that is, the more complete the splits, the greater the degree of schizoid pathology.
Not noticing; paying no heed; thoughtless; inattentive.
- 1716, Jonathan Swift, Phyllis, or the Progress of Love
  Or on the mat devoutly kneeling,
  Would lift her eyes up to the ceiling,
  And heave her bosom unaware
  For neighbouring beaux to see it bare.

unaware +? -ness

unawareness (countable and uncountable, plural unawarenesses)

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