indeterminable
/ˌɪndɪˈtɜːmɪnəbl/adjective
1- not able to be definitely ascertained, calculated, or identified无法确定的; 无法计算的; 难以识别的：
a woman of indeterminable age.
一个无法确定年龄的妇女。
1.1
- (of a dispute or difficulty) not able to be resolved（争论, 困难）无法解决的。
派生词
indeterminably
adverb词源
late 15th cent. （in the sense 'unable to be limited'）: from late Latin indeterminabilis, from in- 'not' + determinabilis （see DETERMINABLE）.