adj .
untalkative by nature 선천적으로 말수가 적은, 과묵한

• The chairman was too _____ that we often discovered that we had absolutely no idea what he was thinking.
• The _____ physicist was sometimes thought to be brilliant simply because no one had ever heard him say anything stupid. Everyone misconstrued is _____ity ; he was actually quite stupid. _____ is related to tacit.