reticent

Từ điển American Heritage Dictionary 4th

ret·i·cent (rĕtʹĭ-sənt)adj.
1. Inclined to keep one's thoughts, feelings, and personal affairs to oneself. See Synonyms at silent.
2. Restrained or reserved in style.
3. Reluctant; unwilling. [Latin reticēns, reticent- present participle of reticēre, to keep silent : re-, re- + tacēre, to be silent.] retʹi·cent·ly adv.

• Từ đồng nghĩa / Synonyms:
  self-effacing, retiring, restrained, unemotional, untalkative