missing /ˈmisiŋ/ adj. 缺掉的，失踪的：missing personsa失踪的人；book with some pages missing 一本缺了几页的书A quantity of cash has gone missing.一大笔现金不见了。She alerted police after her son went missing.儿子失踪后，她报了警。The file was missing from its place.文件不在原来的地方了。