премълчаване означава в английски

reserve [reserves]▼(restraint of freedom in words or actions)
noun
[UK: rɪ.ˈzɜːv] [US: rə.ˈzɝːv]

reticence [reticences]▼(avoidance of saying or reluctance to say too much)
noun
[UK: ˈre.tɪsns] [US: ˈre.tə.səns]