General terms:
* Multicultural: This is the most common and straightforward term.
* Diverse: This emphasizes the variety of cultures present.
* Hybrid: This suggests a fusion or blend of cultures.
* Cosmopolitan: This implies a global outlook and acceptance of different cultures.
More specific terms:
* Polycultural: This emphasizes the presence of multiple, distinct cultures.
* Intercultural: This highlights the interactions and exchanges between cultures.
* Creolized: This applies when cultures have blended and created something new.
Figurative language:
* Cultural mosaic: This evokes a picture of many different pieces coming together.
* Melting pot: This metaphor implies that cultures blend and lose their distinct identities.
* Salad bowl: This metaphor suggests that cultures retain their distinct identities while coexisting.
Ultimately, the best word depends on the specific situation and the nuance you want to convey.