taciturn

Meanings

1. 1
   adj

   Silent; temperamentally untalkative; disinclined to speak.

   The two sisters could hardly have been more different, one so boisterous and expressive, the other so taciturn and calm.

2. 2
   adj

   habitually reserved and uncommunicative

Etymology

Back-formation from taciturnity, from Middle English taciturnite, from Latin taciturnitās; or alternatively from French taciturne, likely reinforced by Latin taciturnus, from tacitus (“secret, tacit”).