vacant /ˈveɪk(ə)nt 
/ ▸ adjective 1 (of a place) not occupied; empty: 40 per cent of the offices are still vacant.
▪ (of a position or employment) not filled: the President resigned and the post was left vacant.
2 having or showing no intelligence or interest: a vacant stare.
– DERIVATIVES vacantly /ˈveɪk(ə)ntli / adverb – ORIGIN Middle English: from Old French, or from Latin vacant- ‘remaining empty’, from the verb vacare.
EnglishOxford Dictionary of English
