insociability

in·so·cia·ble

 (ĭn-sō′shə-bəl)
adj.
Not sociable.

in·so′cia·bil′i·ty n.
in·so′cia·bly adv.

insociability

(ɪnˌsəʊʃəˈbɪlɪtɪ)
n
the state or quality of being insociable