Lots of folks grumble about the diffidence, self-absorption and general uncommunicativeness of Generation Y.    From Wordnik.com.  [Why Gen-Y Johnny Can't Read Nonverbal Cues] Reference

Mrs. Benjamin ignored Isabelle's uncommunicativeness.    From Wordnik.com.  [The Cricket] Reference

A mystery enveloped his beauty, his uncommunicativeness.    From Wordnik.com.  [The Grey Cloak] Reference

Dr. Lavendar did not notice his uncommunicativeness; he had his own preoccupations.    From Wordnik.com.  [The Awakening of Helena Richie] Reference

And having thus revenged herself for her colleague's uncommunicativeness, she went her way.    From Wordnik.com.  [The Privet Hedge] Reference

He suddenly revealed an astonishing streak of uncommunicativeness, totally unnatural in him and tantalising in the extreme.    From Wordnik.com.  [From the Housetops] Reference

But to the last she retained something of her son's unresponsiveness, and an uncommunicativeness which tagged his as hereditary.    From Wordnik.com.  [Many Kingdoms] Reference

Alan's uncommunicativeness extended below the level of speech, and his mother, reduced to the helplessness of dead-reckoning, had not even the solace of adapting her sympathy to his needs.    From Wordnik.com.  [The Descent of Man and Other Stories] Reference

That Edward was reserved -- that beneath his remarkable frankness there lay an uncommunicativeness of disposition -- no one could before his marriage have made her believe: yet it certainly was so.    From Wordnik.com.  [Deerbrook] Reference

He had as yet heard nothing of the newly-formed alliance in low life, and attributed Heathcote's uncommunicativeness either to shame for some discreditable proceeding, or else to passing ill-humour.    From Wordnik.com.  [Follow My leader The Boys of Templeton] Reference

At the sanatorium Keith was waiting for spring and the new doctor; and that the waiting was proving to be a little nerve-racking was proved by the infrequency of his letters home, and the shortness and uncommunicativeness of such as did come.    From Wordnik.com.  [Dawn] Reference

Nicolovius's haughty aloofness, his rigid uncommunicativeness, his grand ducal bearing and the fact that he paid eighteen dollars a week for a suite had of course made him a man of mark and mystery in the boarding-house, and in the romancings of Miss Miller he had figured as nearly everything from a fugitive crown prince to a retired counterfeiter.    From Wordnik.com.  [Queed] Reference

"Lieutenant," Devereaux asked him, "do you find anything ominous in the Sirians' uncommunicativeness?.    From Wordnik.com.  ["New Management", part 3] Reference