What is the meaning of Reticence?

Avoidance of saying or reluctance to say too much; discretion, tight-lippedness; an instance of acting in this manner.

A silent and reserved nature.

Followed by of: discretion or restraint in the use of something.

Often followed by to: hesitancy or reluctance (to do something).

Synonym of aposiopesis (an abrupt breaking-off in speech)

To deliberately not listen or pay attention to; to disregard, to ignore.

Source: wiktionary.org