unprincipled

1. ADJ If you describe a person or their actions as unprincipled, you are criticizing them for their lack of moral principles and because they do things which are immoral or dishonest. 缺乏原则的; 不讲道德的[表不满]

It is a market where people can be very unprincipled and unpleasant. 在这个市场人们可能很缺乏原则也很不友好。