unprincipled

形容词 unprincipled:

1. lacking principles or moral scruples- A.E.Stevenson
2. having little or no integrity

1. He is totally unprincipled in money matters; you can't trust him.
   他在金钱方面根本不讲道德，你不能相信他。

un.prin.ci.pled

adj.（形容词）
Lacking principles or moral scruples; unscrupulous:
无规范的：缺乏原则或道德顾忌的；不谨慎的：
例句：
unprincipled behavior.
不谨慎的行为