if a job or position is unfilled, nobody has been chosen for it (職位)空缺的 There are thousands of unfilled vacancies in the nation's schools. 這個國家的學校有成千上萬個空缺。
- (especially North American English)
if an order for goods is unfilled, the goods have not been supplied (訂單)未交貨的 There is a backlog of unfilled orders to deal with. 有積壓的未完成訂單要處理。
if a break in a conversation is unfilled, nobody speaks (談話中)停頓的