Definition of "uncommunicativeness" [uncommunicativeness]

• The state or character of being uncommunicative, reserved, or taciturn; reserve. (noun)

The Century Dictionary (Public Domain)

• "Lots of folks grumble about the diffidence, self-absorption and general uncommunicativeness of Generation Y."
• "At breakfast next morning Fanny plied him with questions and was furious at his cool uncommunicativeness."
• "But to the last she retained something of her son's unresponsiveness, and an uncommunicativeness which tagged his as hereditary."