sociability UK /ˌsəʊ.ʃəˈbɪlɪti/US /ˌsoʊ.ʃəˈbɪləti/ noun1 •The skill, tendency or property of being sociable or social, of interacting well with others.He was a true introvert, and his sociability lagged behind others of his age in the school. formssociabilities