IPA: /ˈmɒnəˌkʌltʃərəl/
KK: /ˈmɒnəˌkʌltʃərəl/
Relating to or characterized by a single culture, without diversity in cultural practices or beliefs.
The town is largely monocultural, with most residents sharing the same traditions and customs.
Monocultural is formed from "mono-" (meaning one) and "cultura" (from Latin, meaning cultivation or culture). The word describes a society or environment that is characterized by a single culture or way of life.
Think of 'mono-' meaning one, and 'cultura' relating to culture — this helps you remember that monocultural refers to a single culture.