ADJ
未被看到的；被忽略的
If you describe something as unseen, you mean that it has not been seen for a long time.
例句
...a spectacular ballroom, unseen by the public for over 30 years...
公众30多年来未曾见过的豪华舞厅
We print a selection of previously unseen photos from the Spanish rider's early years.
我们选了这位西班牙骑手早年一些不为人知的照片刊登出来。