Noah Webster
Vacant
VA'CANT, adjective [Latin vacans.]
1. Empty; not filled; void of every substance except air; as a vacant space between houses; vacant room.
2. Empty; exhausted of air; as a vacant receiver.
3. Free; unincumbered; unengaged with business or care.
Philosophy is the interest of those only who are vacant from the affairs of the world.
4. Not filled or occupied with an incumbent or possessor; as a vacant throne; a vacant parish.
5. Being unoccupied with business; as vacant hours; vacant moments.
6. Empty of thought; thoughtless; not occupied with study or reflection; as a vacant mind.
7. Indicating want of thought.
The duke had a pleasant and vacant face.
8. In law, abandoned; having no heir; as vacant effect or goods.