Of humble origin or social status; spec. brought up without good breeding or morals; not respectable or welcome in good society. Also…

Of low or inferior rank, birth, or character; debased or degenerate; ignoble, base. Cf. dunghill, adj. 1.

Not genteel. Of manners, habits, employments, etc.

Of inferior breeding or upbringing; wanting in polish or refinement; vulgar. Of persons.

Imperfectly acquainted with the rules of good breeding; under-bred. Obs.

Ungenteel.

Not resembling a gentleman.

Of, relating to, or characteristic of people of low social status, or people regarded as vulgar or disreputable; (of a place) frequented or inhabited…

Of lower degree; of inferior rank.

Usually with hyphen. Of, belonging to, or characteristic of the lower class.

Situated in the servants' quarters; of, relating to, or characteristic of this part of the household or its inhabitants; lower class, downmarket…

Not of requisite social standing.

depreciative. Of a low social status; coarse, vulgar. In later use also as modifier (usually in forms common-as-dirt, common-as-muck).

Of plebeian character or origin; working-class, vulgar, unsophisticated. Cf. plebby, adj.

At the lower end of a (socio-economic) scale; inferior, downmarket.

Not upper-class; (esp. of linguistic usage or social behaviour) not characteristic of the upper social classes. Also (in extended use): not…