unspoken

adj

1. (not-comparable, postpositional, sometimes)Not spoken; not said.
2. (not-comparable, postpositional, sometimes)Not formally articulated or stated; implicit or understood.

   “The unspoken rule is to start a new pot of coffee when it is empty.”

   “I don't think we could ever have a good parent-son relationship as long as there is something as important as this that I'm hiding from you, and you (probably) are wondering about vaguely, but everything remains on a silent unspoken level.”

   “To melt with the sight of a smile that divulges the words unspoken.”

verb

1. (form-of, participle, past)past participle of unspeak