Word · Frequency #6047
unprecedented
前所未有的；史无前例的
核心释义
never before seen, done, or experienced; without precedent
- 1.
前所未有的；无先例的。
Never before seen, done, or experienced; without precedent.
- 2.
前所未有的
having no precedent; novel
前所未有的；无先例的。；前所未有的；空前的；[经] 空前的；无前例的
用法In use
The company faced unprecedented demand for its new smartphone, selling out within hours.
用法提示：形容词“unprecedented”修饰“demand”，表示需求是前所未有的。
Her rapid promotion to director was unprecedented in the history of the firm.
用法提示：形容词作表语，说明晋升这件事史无前例。
The region saw an unprecedented heatwave last summer, breaking all previous temperature records.
用法提示：形容词修饰“heatwave”，强调这次热浪没有先例。
an unprecedented expansion in population and industry
unprecedented + noun
unprecedented 直接修饰名词，表示‘前所未有的’。
The storm caused unprecedented damage.
这场风暴造成了空前的破坏。
相关词与表达Connections
搭配Collocations
- unprecedented level
- 前所未有的水平
- The company achieved an unprecedented level of success this year.公司今年取得了前所未有的成功水平。
- unprecedented scale
- 空前的规模
- The festival was held on an unprecedented scale, attracting millions of visitors.这个节日的规模空前，吸引了数百万游客。
- unprecedented challenge
- 前所未有的挑战
- Climate change poses an unprecedented challenge to global ecosystems.气候变化对全球生态系统构成了前所未有的挑战。
- unprecedented opportunity
- 空前的机遇
- The digital transformation offers an unprecedented opportunity for small businesses.数字化转型为小企业提供了空前的机遇。
学习提示Learner notes
记忆技巧Memory Tip
拆分记忆：un（无）+ precedent（先例）→ 无先例的，即空前
语境与语域Context & Register
通常用于正式或学术语境，表示‘空前的’。比较常见于新闻报道、学术论文等。
语法说明Grammar Note
无比较级和最高级形式
发音与拼写Pronunciation & Spelling
These words share the spelling ending '-ented' but do not rhyme with 'unprecedented' because of different stress placement and syllable count. 'Unprecedented' has primary stress on the second syllable (pre), while these words typically stress the syllable before '-ented' or the first syllable. The pronunciation of '-ented' is /ɛntɪd/ in all, but the preceding sounds vary significantly.
用法优先级Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from ECDICT, WIKTIONARY.