Antonyms for the phrase "am apprised of" include words like uninformed, ignorant, unaware, and oblivious. These words are used to describe a lack of knowledge or awareness about a particular situation or topic. When someone is uninformed or ignorant, they lack knowledge about something, while being unaware or oblivious denotes a lack of perception or attention. Antonyms for "am apprised of" are used when a person wants to convey that they have no knowledge or understanding of a specific event or happening. It is important to understand these antonyms when trying to communicate effectively and avoid misunderstandings.