Antonyms of adj non-u

1 sense of non-u

Sense 1
non-U -- (not characteristic of the upper classes especially in language use)

INDIRECT (VIA upper-class, lower-class) -> middle-class -- (occupying a socioeconomic position intermediate between those of the lower classes and the wealthy)
INDIRECT (VIA lower-class, middle-class) -> upper-class -- (occupying the highest socioeconomic position in a society)

Similarity of adj non-u

1 sense of non-u

Sense 1
non-U -- (not characteristic of the upper classes especially in language use)
       => lower-class (vs. middle-class) (vs. upper-class), low-class -- (occupying the lowest socioeconomic position in a society)