General terms:
* Established: This emphasizes the community's age and history.
* Mature: This highlights the community's stability and experience.
* Well-established: This combines both age and stability.
* Thriving: This emphasizes the community's success and vitality.
* Flourishing: Similar to thriving, this highlights growth and prosperity.
More specific terms:
* Consolidated: This implies a community that has grown and become unified.
* Integrated: This suggests a community where different groups coexist harmoniously.
* Self-sustaining: This highlights the community's ability to meet its own needs.
* Resilient: This emphasizes the community's ability to adapt and overcome challenges.
Figurative language:
* A bedrock community: This conveys a sense of strength and stability.
* A tapestry of cultures: This emphasizes the diversity and richness of the community.
The best word to use depends on the specific context and the message you want to convey.