undemonstrative

adj.

1. 喜怒不形于色的；不流露感情的
   not showing feelings openly, especially feelings of affection

1. ADJ-GRADED 含蓄的；情感不外露的
   Someone who is undemonstrative does not often show affection.
   1. Lady Ainslie is an undemonstrative woman who rarely touches even her own son.
      安斯利夫人是一个连自己儿子都很少抚摸一下的矜持女子。

1. Lady Ainslie is an undemonstrative woman who rarely touches even her own son.
   安斯利夫人是一个连自己儿子都很少抚摸一下的矜持女子。

adj

1. not given to open expression of emotion