The term "not aware" refers to a state of being uninformed, oblivious, or lacking knowledge about a particular subject, situation, or event. When someone is not aware, they are unaware of what is happening around them or do not have the information needed to understand a specific matter.
The phrase "not aware" combines "not," which is a negation derived from Old English "nōt," meaning "no" or "not," and "aware," which comes from the Middle English "ware," appearing in the sense of "having knowledge." The root "ware" originates from the Old English "warian," meaning "to take care."