reticence
noun
[ ˈrɛtɪs(ə)ns ]
• the quality of being reticent; reserve.
• "the traditional emotional reticence of the British"
Similar:
reserve,
introversion,
restraint,
inhibition,
diffidence,
shyness,
modesty,
distance,
undemonstrativeness,
uncommunicativeness,
unresponsiveness,
quietness,
taciturnity,
silence,
secretiveness,
secrecy,
Opposite:
expansiveness,