unidentifiable 

英汉解释

adj. 无法辨认的；无法鉴定的

反义词

a.   identifiable

参考例句

1. Each of them was as highly as one floor, even I was unidentifiable to know them at first.
一株株都跟一层楼差不多高，以至我最初竟没有认出它们来。
2. Partial payment, late payment or unidentifiable payment will not be regarded as a valid payment.
局部缴款、逾期缴款或不能予以识辨的缴款将不会视为有效的缴款。
3. Obi-Wan turned to find an unidentifiable creature standing next to him. Unexplainably, Luke began to fuss.
奥比万转过身，看见自己边上站着一个分不出种族的生物。突然间，卢克开始变得有些手忙脚乱。

英英解释

adj.
  1. impossible to identify

网络释义

unidentifiable
无法鉴别的; 不可识别的; 不可能验明;
unidentifiable cargo
无标志货物;
unidentifiable point
不明显点，难辨认点; 不明显地物点;
unidentifiable mark
标志不清;
syncope of unidentifiable cause
原因不明性晕厥;