mediocrity

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The state or quality of being mediocre.
2. n. Mediocre ability, achievement, or performance.
3. n. One that displays mediocre qualities.

Century Dictionary and Cyclopedia

1. n. The character or state of being mediocre; a middle state or degree; a moderate degree or rate; specifically, a moderate degree of mental ability.
2. n. Moderation; temperance.
3. n. A mediocre person; one of moderate capacity or ability; hence, a person of little note or repute; one who is little more than a nobody.
4. n. Synonyms Medium, Average, etc. See mean, n.

Wiktionary

1. n. The quality of being intermediate between two extremes; a mean.
2. n. obsolete A middle course of action; moderation, balance.
3. n. uncountable The condition of being mediocre; having only an average degree of quality, skills etc.; no better than standard.
4. n. An individual with mediocre abilities or achievements.

GNU Webster's 1913

1. n. The quality of being mediocre; a middle state or degree; a moderate degree or rate.
2. n. obsolete Moderation; temperance.
3. n. A mediocre person; -- used disparagingly.

WordNet 3.0

1. n. ordinariness as a consequence of being average and not outstanding
2. n. a person of second-rate ability or value