ADJ-GRADED 不诚实的;不道德的;无道德原则的 If you describe a person as unscrupulous, you are critical of the fact that they are prepared to act in a dishonest or immoral way in order to get what they want. 不诚实的;不道德的;无道德原则的 [disapproval]
These kids are being exploited by very unscrupulous people.