Low-class and Ungentle

Low-class adjective - Occupying the lowest socioeconomic position in a society.

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

Ungentle adjective - Harsh and threatening in manner or appearance.

Low-class and ungentle are semantically related. Sometimes you can use "Low-class" instead an adjective "Ungentle".