unaccounted

/ˌʌn.əˈkaʊn.t̬ɪd ˌfɔːr/

形容词

（某人）生死未知的
An audit of the police department found that $100,000 in cash and one handgun were unaccounted for.
对警察局进行的审计发现有10万美元现金和一支手枪去向不明。