Low-class and Untitled

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

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

Untitled adjective - Not named or identified by a name.

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