Mediocrity
Part of speech: noun
Definition: The quality of being intermediate between two extremes; a mean. A middle course of action; moderation, balance. The condition of being mediocre; having only an average degree of quality, skills etc.; no better than standard. An individual with mediocre abilities or achievements.
Example sentence: I react very badly when mediocrity throws a tantrum of entitlement.
Averageness
Part of speech: noun
Definition: The state or quality of being average.