无懈可击的英文：
flawless; invulnerable; unquestionable; impeccable; unassailable; unexceptionable; airtight; watertight

参考例句：

The orchestra's performance last night was flawless.
这支管弦乐队昨晚的演出无懈可击。

Mr. Simpson proved to be a man of spotless respectability
辛普森先生被证明是一位无懈可击的体面人物。

Beyond any reasonable objection;irreproachable.
无懈可击的;无可指责的

Faultless logic
无懈可击的逻辑

A watertight aliBi
无懈可击的借口

an impregnable argument.
无懈可击的辩论

It's hard to fault her words.
她的话简直无懈可击。

A watertight alibi;a watertight contract.
无懈可击的借口;严密的合同

His reasoning can't be flawed.
他的推理无懈可击。

His remarks were not entirely above reproach
他的评论并不是完全无懈可击的。

flawless是什么意思：
adj. 完美的，无瑕的

He displayed a flawless technique in the competition.
他在竞赛中显示出了精湛的技艺。

She attributed her flawless complexion to the moisturiser she used.
她将自己无瑕的肌肤归功于所使用的保湿霜。

The politician worked the crowd.The comedian worked the room with flawless rhythm.
政客游说观众。戏剧演员用完美无缺的节拍影响了全屋的人

invulnerable是什么意思：
adj. 不会受伤害的，刀枪不入的

He might have been called the invulnerable dwarf of the fray.
可以说，他是混战中的一个无懈可击的侏儒。

The myth of Hitler's invulnerability was soon blown sky - high.
希特勒不可战胜的神话不久被彻底粉碎。

I mutter admiringly, from that part of me which must be immortal and invulnerable.
我满怀赞美地咕哝着，这可是发自我那永生不朽且又不会受伤害的内心深处。

unquestionable是什么意思：
adj. 毫无疑问的；无可挑剔的

He was the unquestioned leader of American legal scholarship.
他是美国法学界当之无愧的领袖。

The concerto was performed by a violinist of unquestioned competence but limited imagination.
小提琴家所演奏的协奏曲毫无疑问是出色的，但是缺乏想像力。

He was the unquestioned leader of American legal scholarship
他是美国法学界当之无愧的领袖。