What is the meaning of "mediocrity"?

The term "mediocrity" refers specifically to a state of being average or ordinary, particularly in terms of quality or performance. It implies a lack of distinction or superiority, often highlighting that something is neither particularly good nor particularly bad but resides in the realm of the commonplace.

In this context, "ordinariness" captures the essence of mediocrity, perfectly aligning with its definition. The other options focus on positive attributes or conditions that significantly contrast with the concept of mediocrity, which emphasizes a lack of excellence or uniqueness. Thus, "mediocrity" as identified by the correct answer reflects a sense of commonplace, making it an apt choice in the context of this question.