unscrupulous
adjective disapproving uk/ʌnˈskruː.pjə.ləs/ us/ʌnˈskruː.pjə.ləs/
C2 无道德原则的;不诚实的;不公正的;无耻的
behaving in a way that is dishonest or unfair in order to get what you want
an unscrupulous financial adviser 一个没有诚信的金融顾问
Synonym: dishonest
Opposite: scrupulous