When we say that something "was on a par with" another thing, we mean that they were equal in a particular way, such as worth, quality, or skill. The antonyms for this phrase include inferior, unequal, worse, and beneath. When we say that something is inferior, we mean that it is of lower quality or value than another thing. Unequal refers to things that are not the same in quantity, size, or quality. Worse means that something is less good than something else. Beneath means that something is of lower rank, status, or quality than another thing. By knowing the antonyms of "was on a par with," we can better differentiate between things that are equal and those that are not.