It was unscrupulous of their lawyer to withhold evidence.

他们的律师隐瞒证据不道德的。

He won't do that if tergiversation is immoral.

如果背叛不道德的，他就不会做。

Gullible shoppers are easily duped by unscrupulous advertisers.

不坚定的很容易被不道德的广告商蒙骗。

It’s immoral to sleep with someone of you’re not in love.

你如果不爱一人却与其同居,这不道德的。

Telling lies is wrong.

说谎不道德的。

It is wrong to steal.

不道德的。

Waste of food is wicked.

糟蹋粮食不道德的。

Most of our social problems would be solved if we could somehow get rid of the immoral, crooked, and feebleminded people.

如果除去那些不道德的、欺诈的和意志薄弱的人，我们的多数社会问题就会迎刃而解。