- of, relating to, or characteristic of a family: familial ties.
- appearing in individuals by heredity: a familial disease.
- of or relating to the family
- occurring in the members of a familya familial disease
adj.from French familial, from Latin familia (see family). Meaning “hereditary” is from 1900; “family-like” is from 1903. adj.
- Occurring or tending to occur among family members, usually by heredity.