unspoken
US /ʌnˈspoʊ.kən/
UK /ʌnˈspoʊ.kən/

1.
non detto, implicito
not expressed in speech; unstated or implicit
:
•
There was an unspoken agreement between them.
C'era un accordo non detto tra loro.
•
Her eyes conveyed an unspoken message.
I suoi occhi trasmettevano un messaggio non detto.