Antonyms of adj convivial

1 sense of convivial

Sense 1
convivial, good-time -- (occupied with or fond of the pleasures of good company; "a convivial atmosphere at the reunion"; "a woman of convivial nature"; "he was a real good-time Charlie")

INDIRECT (VIA sociable) -> unsociable -- (not inclined to society or companionship; "an unsociable nature...shy and reserved"; "generally unsociable except with intimate friends"; "unsociable behavior"; "an unsociable neighborhood")

Similarity of adj convivial

1 sense of convivial

Sense 1
convivial, good-time -- (occupied with or fond of the pleasures of good company; "a convivial atmosphere at the reunion"; "a woman of convivial nature"; "he was a real good-time Charlie")
       => sociable (vs. unsociable) -- (inclined to or conducive to companionship with others; "a sociable occasion"; "enjoyed a sociable chat"; "a sociable conversation"; "Americans are sociable and gregarious")