unprincipled
🇺🇸
/ʌnˈprɪnsəpld/
🇬🇧
/ʌnˈprɪnsəpld/
lacking a moral compass or ethical standards
The unprincipled businessman cheated his customers to make more money.
这位不讲原则的商人为了赚更多的钱欺骗了他的顾客。