What is an antonym for the word culture hearth?

There isn't a single perfect antonym for "culture hearth" because it's a complex concept. However, depending on the context, you could consider:

For the "hearth" aspect:

* Cultural periphery: This suggests a region or group that is less central to a cultural influence.

* Cultural borderland: This suggests a zone where different cultures meet and mix.

* Cultural wasteland: This implies a lack of cultural development or vibrancy.

For the "culture" aspect:

* Cultural stagnation: This suggests a lack of development or change.

* Cultural decline: This suggests a deterioration or loss of cultural values.

* Cultural extinction: This suggests the complete disappearance of a culture.

Other alternatives:

* Cultural backwater: This implies a region or group that is isolated and behind the times.

* Cultural dead end: This implies a lack of potential for further cultural development.

The best antonym for "culture hearth" will depend on the specific meaning you want to convey.