un·com·mu·ni·ca·tive 
(ŭn′kə-mynĭ-kā′tĭv, -kə-tĭv)
(ŭn′kə-mynĭ-kā′tĭv, -kə-tĭv)adj.
1. Not disposed to be communicative.
2. Characterized by reserve or a lack of expression: in an uncommunicative mood; an uncommunicative stare.
un′com·muni·ca′tive·ly adv.
un′com·muni·ca′tive·ness n.