Antonyms of adj multi-ethnic

1 sense of multi-ethnic

Sense 1
multiethnic, multi-ethnic -- (involving several ethnic groups)

INDIRECT (VIA social) -> unsocial -- (not seeking or given to association; being or living without companions; "the unsocial disposition to neglect one's neighbors")
                                                                         

Similarity of adj multi-ethnic

1 sense of multi-ethnic

Sense 1
multiethnic, multi-ethnic -- (involving several ethnic groups)
       => social (vs. unsocial) -- (living together or enjoying life in communities or organized groups; "a human being is a social animal"; "mature social behavior")