tribalist
/ˈtraɪbəlɪst/Definitions
1. noun
A person who gives priority to the interests or loyalties of their tribe over those of other groups or individuals.
“The politician was accused of being a tribalist by favoring his own community in the budget allocation.”
2. adjective
Relating to or characteristic of a tribe or tribal system.
“The anthropologist studied the tribalist customs of the indigenous people.”