The phrase "am witness" implies that someone has personally observed or experienced something. The antonym of "am witness" could be "in the dark," meaning that someone has no knowledge or understanding of the situation. Another antonym could be "deny," indicating that someone is refuting or rejecting the truthfulness of what they have witnessed. Alternatively, "unaware" could also serve as an antonym, suggesting that someone lacks knowledge or information about a particular event or occurrence. There are several other antonyms that could be used, including "ignore," "disbelieve," and "confuse," depending on the context of the situation.
