Antonyms for the phrase "am par with" include "below average," "inferior," "substandard," "inferiority," and "second-class." These words indicate that something or someone is not at the same level as its peers or competitors in terms of quality, skill, or performance. It is the opposite of being at par or equal with others. When something is described as being below par, it means it is not up to the required standard or does not meet expectations. Understanding the antonyms of "am par with" can help in distinguishing the difference in quality or excellence and identifying areas that may require improvement.