1
have the audacity to do sth
此义侧重“厚颜无耻”，多用于指责某人做出不当或冒犯的事。
He had the audacity to question the manager's decision in front of everyone.
他竟敢在大家面前质疑经理的决定。
大胆；无畏
先理解核心含义，再看它在真实句子里的用法。
大胆；无畏
fearless daring; boldness
He had the audacity to question the manager's decision in front of everyone.
他竟敢在大家面前质疑经理的决定。
无礼的胆大妄为,尤指轻率或不合常规时。
Insolent boldness, especially when imprudent or unconventional.
无畏、勇敢或大胆,尤其带有对个人安全、传统思想或其他限制的漠视。
Fearlessness, intrepidity or daring, especially with confident disregard for personal safety, conventional thought, or other restrictions.
With incredible audacity, the young sailor crossed the ocean alone.
年轻的船员以惊人的胆量独自横渡了大洋。
Her audacity in challenging the old rules impressed even her critics.
她挑战旧规则的勇气甚至打动了批评她的人。
It takes audacity to publicly admit a serious mistake.
公开承认严重错误需要勇气。
此义侧重“厚颜无耻”，多用于指责某人做出不当或冒犯的事。
He had the audacity to question the manager's decision in front of everyone.
他竟敢在大家面前质疑经理的决定。
此处 audacity 意为“大胆”，含褒义，表示勇敢自信。
She answered the question with audacity.
她大胆地回答了问题。
通常用来称赞某人的勇气，语义接近“勇敢”。
He showed audacity in defending his beliefs.
他在捍卫自己的信念时表现出了无畏。
Not this
He is very audacity.
Use this
He is very audacious.
audacity 是名词，不能当表语形容词；描述人很大胆要用形容词 audacious。
Not this
He had audacity to ask for a raise.
Use this
He had the audacity to ask for a raise.
表达“居然有脸做某事”时用固定搭配 have the audacity to do，其中 the 不能省略；汉语没有冠词，所以容易漏掉。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
胆敢做某事；竟有脸做某事
He had the audacity to blame me for his own mistakes.
他竟有脸把自己的错误归咎于我。
十足的放肆；极度的胆大妄为
The sheer audacity of the lie left everyone speechless.
这个谎言无耻至极，让所有人都哑口无言。
大胆行事；勇敢地行动
To break new ground, scientists must often act with audacity.
要开辟新天地，科学家们常常必须大胆行动。
无畏的希望；敢于抱持希望的胆识
The movement was driven by the audacity of hope.
这场运动由无畏的希望所推动。
竟然有胆量做某事；厚颜无耻地做某事
He had the audacity to ask for a raise right after criticizing the company.
他批评公司之后居然还有胆量要求加薪。
无畏的希望
The book The Audacity of Hope inspired many readers.
《无畏的希望》这本书激励了众多读者。
十足的厚颜无耻；极其大胆
The sheer audacity of his lies made everyone angry.
他那十足的厚颜无耻让所有人都很生气。
大胆，大胆，永远大胆！
His audacity in challenging the old rules made him a leader.
他挑战旧规则的胆量使他成了领导者。
无畏的希望。
She found the audacity to pursue her dream despite the risks.
尽管有风险，她还是鼓足勇气去追求梦想。
Use audacity naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：audacity 像‘奥黛西’，一个大胆无畏、甚至厚脸皮的人；大胆到敢做任何事。
语域：mixed 常见场景：formal writing and journalism、everyday conversation and criticism audacity 有两种常见用法：表示“大胆、无畏”时多用于正式或文学语境；表示“放肆、厚脸皮”时常见于日常口语批评。具体含义需依上下文判断，因此语域较难一概而论，正式与非正式场合都会出现。
audacity 读作 /ɒ:'dæsiti/。所列 -acity 词（capacity、tenacity、veracity、sagacity、rapacity）与其押韵：重读音节均为 /æsɪti/。注意 -ocity 结尾的拼写近似词如 atrocity、ferocity、velocity 重读元音是 /ɒ/，发音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.