priceless
adj. 无价的;非常有用的;<非正式> 十分有趣的,极为可笑的
例句
They are priceless, unique and irreplaceable.
它们是无价的、独一无二的,不可替代的。
《柯林斯英汉双解大词典》
Priceless antiques were destroyed in the fire.
无价之宝的古董在大火中焚毁。
《牛津词典》
The house is crammed with priceless furniture and works of art.
这房子里堆满了价值连城的家具和艺术品。