unaware

adjective2

1. •
   Not aware or informed; lacking knowledge; unmindful.

   • I'm unaware of the answer to that question.
   • Luckily, she was unaware that I'd spent the last five years in prison.
2. •
   Not noticing; paying no heed.

   • 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. — 1716