closed-off russian

• замкну́вший

  closed, locked, completed (a circuit), having closed

  withdrawn, reclusive, introverted, having closed oneself off

• замкну́вшийся

  withdrawn, reclusive, secluded, closed-off, isolated

Examples

• Том закры́л глаза и погрузи́лся в сон.

  Tom closed his eyes and drifted off to sleep.

• Почто́вое отделе́ние закры́то.

  The post office is closed.

• По́чта сего́дня не рабо́тает.

  The post office is closed today.

• По́чта ещё закры́та?

  Is the post office still closed?