unaware
adj.adj. not knowing or noticing that something is happening. You use this when you do not realize a fact or a situation exists.
adj. having no knowledge or perception of a situation or fact. Often used predicatively to describe a lack of conscious realization.
He was completely unaware of the surprise party.
The hikers were unaware that a storm was approaching until the sky turned dark and the wind picked up.
Many consumers remain blissfully unaware of the complex global supply chains required to deliver seasonal produce to their local supermarkets year-round.
From un- + aware.
Commonly followed by the preposition 'of' or a 'that' clause.
He was unaware about the change.He was unaware of the change.Unaware typically takes the preposition 'of' rather than 'about'.