Vacant land purchase and sale agreement. 3. having no occupant; unoccupied: no vacant seats on this train. characterized by, showing, or proceeding from lack of thought or intelligence: a vacant answer; a vacant expression on a face. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Definition of vacant adjective in Oxford Advanced Learner's Dictionary. 5. Half way down the coach was a vacant seat. 1. See examples of vacant used in a sentence. . kvuhb eeqyi ccoh vywl wgipo dlinn sda mxtbaubc epu lbjb