Of, relating to, or characteristic of a tribe.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tribal" in a sentence
"The way we use the word tribal here communicates what the majority of people about 75 percent have in common: they are usually most successful and satisfied working with and through other people as members of an organization, group, or “tribe.”"
"Each of these identities creates what I call a tribal information boundary (TIB)."
"So now, they have very safe sanctuaries in Pakistan, which is doing virtually nothing to stop them from organizing to fight in Afghanistan, and they're also benefiting from what you referred to as tribal conflict in northern Afghanistan, which shows that the government is not coherent."