形容詞 dishonest:

1. deceptive or fraudulent; disposed to cheat or defraud or deceive
   同義詞：dishonorable
2. lacking honesty and oblivious to what is honorable
3. lacking truthfulness
4. capable of being corrupted
   同義詞：corruptible, bribable, purchasable, venal

1. It's a dishonest scheme and I'm glad to be out of it.
   那是個騙局，我幸而置身事外。
2. I would rather remain poor than get money by dishonest means.
   我寧可安于貧窮，也不愿用不當(dāng)手段賺錢。
3. Although she is poor, it doesn't follow that she is dishonest.
   雖然她窮，卻未必不誠實。
4. She was defrauded of her money by a dishonest accountant.
   她的錢被一個奸詐的會計騙去了。
5. A dishonest business or practice, especially one that obtains money through fraud or extortion.
   敲詐不誠實的生意或行為，尤指通過欺詐或勒索得到錢
6. Susceptibility to bribery or corruption, as in the use of a position of trust for dishonest gain.
   甘受賄賂，貪污腐化易受賄賂或腐敗的影響性，如在使用不誠實的收益的信托狀況時
7. I will not make friends with a dishonest person.
   我決不會與不誠實的人交朋友。
8. He is a dishonest merchant.
   他是一個不誠實的商人。

dis.hon.est

adj.（形容詞）
Disposed to lie, cheat, defraud, or deceive.
說謊的、欺瞞的：有意撒謊、欺騙、詐騙或蒙蔽的
Resulting from or marked by a lack of honesty.
不誠實的；不正直的：由缺乏誠實而引起的，或以不正直為特征的

來源：
Middle English dishoneste [dishonorable]
中古英語 dishoneste [不名譽的，不光彩的，可恥的]
from Old French deshoneste
源自 古法語 deshoneste
probably from Medieval Latin *dishonestus
可能源自 中世紀(jì)拉丁語 *dishonestus
Latin dis- [dis-]
拉丁語 dis- [表示.不，相反.的意思]
Latin honestus [honorable] * see honest
拉丁語 honestus [榮譽的，誠實的] *參見 honest

【引伸】
dishon.estly
adv.（副詞）
<參考詞匯><同義詞>dishonest,lying,untruthful,deceitful,mendaciousThese adjectives mean lacking honesty or truthfulness.
這些形容詞都含有不誠實或不真實的意思。
Dishonest is the least specific:
Dishonest 是最普通的：
例句：
a dishonest answer;
不老實的回答；

例句：
a dishonest car dealer;
不誠實的汽車經(jīng)營者；

例句：
dishonest profits.
不正當(dāng)?shù)墨@利。

Lying conveys a blunt accusation of untruth:
Lying 表達了對不真實性直言不諱的譴責(zé)：
例句：
Inconsistencies in his testimony made it obvious that he was a lying witness.
他證詞不一致，很明顯，他是一個撒謊的證人。

Untruthful is a softer but closely related term;it suggests both lack of veracity and divergence from fact:
Untruthful 是一個口氣更溫和而關(guān)系更密切的交情；該詞既意味著缺乏真實，又意味著脫離事實：
例句：
made an untruthful statement.As experiments are completed the hypothesis seems increasingly untruthful.
做了不真實的敘述。實驗結(jié)束后，這種假說好象增加了不真實性。

Deceitful implies misleading by falsehood or by concealment of the truth:
Deceitful 指由于欺騙或掩蓋事實而使人迷惑的：
例句：
deceitful advertising;
騙人的廣告；

例句：
a deceitful person.
欺騙的人。

Mendacious, a more formal equivalent oflying, suggests a chronic inclination toward untruth when it is applied to persons:
Mendacious 與lying 意思一樣但更為正式，當(dāng)用于指人時，含有有偽造、撒謊的習(xí)慣：
例句：
submitted a mendacious insurance claim.
上交了一份偽造的保險書。

例句：
Even when she is not being overtly mendacious,she tinkers with the truth.
即使當(dāng)她不是公開撒謊時，她在事實的真相上也是笨拙的