Definitions for "Reticent"
temperamentally disinclined to talk
Inclined to keep silent; reserved; uncommunicative.
reluctant to draw attention to yourself
Moderately laid-back. Describes the sound of a system whose frequency response is dished-down through the midrange. The opposite of forward.
Keywords:  cool, manner, formal
cool and formal in manner
Keywords:  oneself, thoughts, keeping, one
Keeping one's thoughts to oneself.