dishonest       
adjective uk/dɪˈsɒn.ɪst/ us/dɪˈsɑː.nɪst/
B2 不诚实的,不老实的,不正直的
not honest
  a dishonest lawyer 不正直的律师 
 a dishonest way of making money 不诚实的赚钱方式 
 morally dishonest 品行不端 
 intellectually dishonest 学术上不诚实 
 He's been dishonest in his dealings with us/about his past. 他和我们做交易时一向不老实/他对自己的过去不够诚实。 
 - More examples
 - I'm convinced she's being dishonest about what happened and is just trying to avoid the blame.
 - We believe that you have been dishonest with us and that some of the details on your CV are false.
 - The money never reached the people it was meant for but was stolen by dishonest officials.
 - She was upset by the suggestion that she had been dishonest.
 - I am very disappointed that you should accuse your sister in such a cowardly and dishonest way.