The phrase "not par" indicates an item or concept that does not meet a specific standard or level of quality. Some antonyms for "not par" include exceptional, superior, outstanding, above average, exemplary, and noteworthy. These are words that denote superiority and exemplariness, qualities that are required to meet above-average standards. Conversely, inferior, subpar, unsatisfactory, unacceptable, deficient, and mediocre are antonyms that denote a failure to meet basic expectations. When striving for excellence, it is important to be mindful of these antonyms, as they can provide insight into areas that require improvement. By working on these areas, it is possible to elevate performance and surpass expectations, achieving greatness.