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

1.
tacite, non dit, implicite
not expressed in speech; unstated or implicit
:
•
There was an unspoken agreement between them.
Il y avait un accord tacite entre eux.
•
Her eyes conveyed an unspoken message.
Ses yeux transmettaient un message non dit.