Crooked (adjective)

1. Not straight; bent or curved.
2. Dishonest, unethical or illegal.

Origin:

Late middle english: from old norse krókr "hook"; compare with old english crōc "hook, bent stick".

Examples:

1. The fence was crooked and needed to be fixed.
2. He had a crooked smile on his face.
3. The crooked politician was finally caught and sent to prison.
4. The crooked businessman was caught embezzling funds.
5. The crooked road wound through the mountains.