Contemptible (adjective)

1. Deserving or deserving of contempt; worthy of disdain.
2. Worthless; despicable.
3. Disrespectful; showing disrespect or disregard.

Origin:

From the latin contemptibilis, from contemnere meaning "to despise".

Examples:

1. The dictator's actions were contemptible and led to the deaths of thousands of innocent people.
2. The judge held the defendant in contemptible behavior.
3. The employee's attitude was contemptible and not acceptable.
4. The act of cheating is contemptible and should not be tolerated.
5. The contemptible behavior of the politicians led to the loss of public trust.