Low-down and Malefic

Low-down adjective - Not following or in accordance with standards of honor and decency.

Malefic and low-down are semantically related. In some cases you can use "Malefic" instead an adjective phrase "Low-down".

Malefic adjective - Having or exerting a malignant influence.

Low-down and malefic are semantically related. Sometimes you can use "Low-down" instead an adjective "Malefic".