<p><strong>Adjective</strong></p><ul><li>having no contents; empty; void: a vacant niche.</li><li>having no occupant; unoccupied: no vacant seats on this train.</li><li>not in use: a vacant room.</li><li>devoid of thought or reflection: a vacant mind.</li><li>characterized by, showing, or proceeding from lack of thought or intelligence: a vacant answer; a vacant expression on a face.</li><li>not occupied by an incumbent, official, or the like, as a benefice or office.</li><li>free from work, business, activity, etc.: vacant hours.</li><li>characterized by or proceeding from absence of occupation: a vacant life.</li><li>devoid or destitute (often followed by of): He was vacant of human sympathy.</li><li>having no tenant and devoid of furniture, fixtures, etc. (unoccupied): a vacant house.</li><li>idle or unutilized; open to any claimant, as land.</li><li>without an incumbent; having no heir or claimant; abandoned: a vacant estate.</li></ul>