unavailable
/ˌʌnəˈveɪləbl/adjective
1- not able to be used or obtained; not at someone's disposal不可用的; 不可获得的; 达不到的：
material which is unavailable to the researcher.
研究者无法获得的材料。
1.1
- (of a person) not free to do something; otherwise occupied（人）没空的; 忙的：
the men were unavailable for work.
这些人没空干活。
派生词