The phrase "am in driver seat" implies that someone is in control or in a position of power. Its antonyms could be various expressions that convey the opposite idea: being powerless, subordinate, or lacking control. Phrases like "out of control," "not in charge," or "at the mercy of" could be suitable antonyms. Other possibilities include "following someone else's lead," "taking a back seat," or "being a passenger." The antonyms of "am in driver seat" are important to consider, as they help to expand our vocabulary and provide a full spectrum of expressions to communicate different ideas and situations.