What is another word for lack of communication?

Here are some words that could be used to describe a lack of communication, depending on the specific context:

General:

* Miscommunication

* Silence

* Gap

* Disconnection

* Breakdown

* Distance

* Isolation

More specific:

* Misunderstanding

* Inability to connect

* Lack of understanding

* Inability to articulate

* Communication breakdown

* Missed connections

* Unclear expectations

Figurative:

* Closed off

* Walls

* Barrier

* Gulf

* Divide

The best word to use will depend on the specific situation and the nuance you want to convey.