Not of the elite, of the peasantry or working-class. / Unrefined.

(US) A reduced-rate mail service for printed matter. / (Britain, historical) The cheapest accommodation on a train or ship.

(astronomy) A classification of stars depending on their spectra and luminosity; usually one of O, B, A, F, G, K, M.

Most inferior in quality or standing.

Of or pertaining to the working class; suggestive of the working class in manner of speaking, outlook, appearance or other qualities.

The second-lowest rank in the Boy Scouts of America, between tenderfoot and first class.

(neutral or mildly positive connotation) Of a standard or grade one level below the best. / (negative connotation) Inferior in quality or standing.

Of a standard that ranks among the best in the world.

Quality of being middle-class.

plural of lower class