vacant (adj.) Look up vacant at Dictionary.com
c.1300, "not filled, held, or occupied," from Old French vacant "idle, unoccupied" (of an office, etc.), from Latin vacantem (nominative vacans), "empty, unoccupied," present participle of vacare "to be empty" (see vain). Meaning "characterized by absence of mental occupation" is from 1570s. Related: Vacantly.