impostor

詳細解釋：

im.pos.tor

n.（名詞）
One who engages in deception under an assumed name or identity.
冒名頂替的人：涉及以假名或假身份欺騙的人

來源：
French imposteur
法文 imposteur
from Late Latin impostor
源自 後期拉丁語 impostor
variant of impositor [one who assigns a name]
impositor的變體 [起名字的人]
from impositus [past participle of] impônere [to place upon] * see impose
源自 impositus [] impônere的過去分詞 [放上] *參見 impose

<參考辭彙><同義詞>impostor,quack,faker,humbug,mountebank,charlatanThese nouns denote people who pretend to be other than what they are or to have abilities or qualifications that they do not really have. An
這些名詞都指那些假冒別人的人和假稱具有自己並沒有的能力或者資格的人。
impostor assumes the character or identity of another for the purpose of deceiving:
impostor 是出於欺騙而假冒別人的角色或者身份：
例句：
He succeeded in his profession, but he always secretly considered himself an impostor.
他在專業方面很成功，但他常暗自認為是個冒牌貨。

Quack refers especially to one who practices medicine without being properly qualified:
Quack 尤指那些沒有取得資格就行醫的人：
例句：
.He who has once been under the hands of a quack, is for ever after prone to dabble in drugs. (Washington Irving).Afaker simulates or feigns the appearance of being what he or she is not:
.曾經遭受庸醫之苦的人，之後永遠有涉獵藥物的傾向. （華盛頓·歐文）。faker 假扮或假裝並非他或她自身的外表：

例句：
The brokerage executive was unmasked as a faker. Ahumbug is a self-important or self-deluded faker:
經紀人被揭穿是個冒充者。 humbug 是一個自視過高的或者自欺欺人的冒充者：

例句：
.What a humbug that woman is!. (Thackeray).Amountebank is a flamboyant, unscrupulous dealer or promoter:
.那個女人是怎樣一個騙子啊!. （薩克雷）。mountebank 是一個傲慢的、無恥的商人或者推銷商：

例句：
.I remember . . . there was an impudent mountebank who sold pills which (as he told the country people) were very good against an earthquake. (Joseph Addison).Acharlatan makes false claims to skill or knowledge and hides his or her deficiency by an elaborate, fraudulent, often voluble display:
.我記得…有一個厚顏無恥的商人來推銷能（據他對村民們所說的）對付地震極為有效的藥片. （約瑟夫·艾迪生）。charlatan 假稱擁有某種技術或知識並且用故意的、欺騙性的，經常是口若懸河的顯露來掩飾他或她的不足：

例句：
It was difficult to discern that despite all the abstruse vocabulary the professor was really a charlatan.
很難辨明那個教授雖然有很多深奧的辭彙，實際上卻是一個冒充內行的人