1
: of or relating to a family
familial relationships
: suggesting a family
The company has created a familial atmosphere in its offices.
2
medical
: tending to affect members of the same family
a familial disease
Cite this Entry
“Familial.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/familial. Accessed 18 Jun. 2026.
Copy Citation
