n. pl. vac·u·i·ties 1. Total absence of matter; emptiness.
2. An empty space; a vacuum.
3. Total lack of ideas; emptiness of mind.
4. Absence of meaningful occupation; idleness: "the crew, being patient people, much given to slumber and vacuity" (Washington Irving).
5. The quality or fact of being devoid of something specified: a vacuity of taste; a vacuity of emotions.
6. Something, especially a remark, that is pointless or inane: a conversation full of vacuities.