Demerit and Drawback

Demerit noun - A defect in character.

Drawback and demerit are semantically related in fault topic. In some cases you can use "Drawback" instead a noun "Demerit", when it comes to topics like defect, shortcoming.

Drawback noun - A feature of someone or something that creates difficulty for achieving success.

Demerit and drawback are semantically related in fault topic. You can use "Demerit" instead a noun "Drawback", if it concerns topics such as defect, shortcoming.