late 14c., originally in figurative sense of "unrestrained, ungoverned," from un- (1) "not" + bridled (see bridle (v.)). Similar formation in Middle Dutch ongebreidelt. Literal sense of "not fitted with a bridle" (of horses) is not recorded before 1550s. The verb unbridle (see un- (2)) is attested from c. 1400 in the literal sense; mid-15c. in the figurative sense.
实用例句
1. His annoyance had unbridled his tongue.
他的烦恼使他打开了话匣子.来自《现代英汉综合大词典》
2. Memories have been in unbridled spread.
回忆一直在肆无忌惮的蔓延。来自辞典例句
3. I was amazed at their unbridled glee.
他们那兴高采烈的痛快劲儿真让我吃惊.来自名作英译部分
4. The invading troops displayed the most unbridled license.
入侵军队胡作非为到了极点.来自辞典例句
5. The reactionary elements have been unbridled in their attacks.
