unspoken russian

• замере́ть

  to freeze, stand motionless

  (figurative) to come to a standstill

  to die down (of a sound)

  to remain unspoken

• негла́сный

  unspoken(rule)

• недоговариваемый

  unspoken, implicit, tacit, unstated, unsaid

• недоска́занный

  unsaid, unspoken, implied, not fully expressed