The antonyms for the phrase "am introduced" can vary depending on the context of the situation. If one is being formally introduced, then the antonyms may include "am ignored," "am overlooked," or "am disregarded." Alternatively, if one is attempting to blend in or go unnoticed, the antonyms may include "am recognized," "am noticed," or "am acknowledged." In informal situations, antonyms may include "am excluded," "am avoided," or "am shunned." It's important to note that the antonyms for "am introduced" may not always have a negative connotation, as sometimes it's preferable to remain unnoticed.