Reticence

n.	1.	The quality or state of being reticent, or keeping silence; the state of holding one's tonque; refraining to speak of that which is suggested; uncommunicativeness. Such fine reserve and noble reticence. - Tennyson.
	2.	(Rhet.) A figure by which a person really speaks of a thing while he makes a show as if he would say nothingon the subject.

Noun

1.

reticence - the trait of being uncommunicative; not volunteering anything more than necessary Synonyms: taciturnity, reserve

aloofness, backwardness, bashfulness, blankness, chilliness, coldness, constraint, coolness, detachment, discreetness, discretion, distance, expressionlessness, frigidity, frostiness, guardedness, iciness, impassiveness, impassivity, impersonality, inaccessibility, introversion, modesty, remoteness, repression, reserve, reservedness, restraint, reticency, retirement, standoffishness, subduedness, suppression, unaffability, unapproachability, uncongeniality, undemonstrativeness, unexpansiveness, withdrawal, withdrawnness