| 单词 | unprecedented |
| 释义 | unprecedented (once / 899 pages) adj Something that is unprecedented is not known, experienced, or done before. If you've never gone on a family beach vacation but you're planning one now, you could refer to it as an unprecedented decision. The root of this word is precedent, a noun referring to something done or said that is used as an example to be followed in the future. In law, a precedent is a legal decision that is used as a standard in future cases. So the adjective unprecedented, meaning "having no precedent," was formed from the prefix un- "not," the noun precedent, and the suffix –ed "having." WORD FAMILYunprecedented: unprecedentedly+/precedented: precedentedly, unprecedented USAGE EXAMPLESThe “unprecedented” personal wealth of Trump’s nominees warrants the delays, one senior Democratic aide said. Washington Post(Jan 01, 2017) This was unprecedented, and it held a strange appeal. Salon(Jan 02, 2017) The U.S. semiconductor industry is facing an unprecedented wave of consolidations, with mergers and acquisitions in the sector valued last year at over $100 billion. Wall Street Journal(Jan 02, 2017) adj having no precedent; novel an unprecedented expansion in population and industry Syn|Ant new, unexampled having no previous example or precedent or parallel precedented having or supported or justified by a precedent |
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