Familial/fəˈmɪliəl/ Definition 1 of 2Pro Tip 1/3Emotional Connection ‘Familial’ often implies deep emotional ties, not just biological ones. She felt a familial warmth towards her mentor, like that of an uncle. Pro Tip 2/3Cultural Sensitivity Some cultures have wider definitions of ‘familial’, including extended members. In his community, familial responsibilities extend to third cousins. Pro Tip 3/3Non-biological Use ‘Familial’ can describe relationships resembling those of a family. The club had a familial atmosphere, where everyone looked out for each other.