c. 1300 "not detected by sense of hearing," from un- (1) "not" + past participle of hear. Meaning "unknown, new" is attested from late 14c. (Old English had ungehered in this sense). Usually with of since 1590s. Similar formation in Old Norse oheyrðr, Danish uhørt, Middle Dutch ongehoort, Old High German ungehoret.
实用例句
1. Martin's weak cries for help went unheard until 6.40pm yesterday.
直到昨天傍晚6点40分，马丁微弱的呼救声才被人听到。
来自柯林斯例句
2. She had not waited for any explanation but had condemned him unheard.
她没等他解释，就指责他充耳不闻。
来自柯林斯例句
3. His impassioned pleas went unheard.
他充满激情的请求未被理睬。
来自柯林斯例句
4. Their protests went unheard .
他们的抗议无人理会。
来自《权威词典》
5. He'd dyed his hair, which was almost unheard-of in the 1960s.
