improper behavior

基本解释

Don't you know that is improper behavior?
你不知道那是不适当的行为吗？
Those who engage in improper behavior, like trying to mingle with strangers or sell products too aggressively, are kicked out.
那些有不当行为的人，比如与可疑人混在一起或是大肆推销东西的人会被踢出去。
As mentioned above, many types of memory usage errors are insidious: the program appears to behave normally, even though it's at risk for memory corruption and improper behavior.
正如上面所提到的，许多内存使用错误都是潜伏的：程序似乎在正常地运行，即使它所面临着内存崩溃或者错误行为的危险。

It requires people to reconstrue improper behavior to make it less improper, to frame it in a different way to make it more palatable.
FORBES: 'Moral Decoupling:' How Consumers Justify Supporting a Tarnished Brand
As of now, there has been neither a direct nor indirect line drawn that would suggest that the White House was, in any way, complicit in the improper behavior.
FORBES: No, Virginia, We Are Not Having A Watergate Style Impeachment Moment