1. characteristic of a mother

- warm maternal affection for her guest

Similar word(s): maternalistic, motherlike, motherly, matriarchal

2. relating to or derived from one's mother

- maternal genes

3. relating to or characteristic of or befitting a parent

Similar word(s): parental, paternal

4. related on the mother's side

- my maternal grandmother

Similar word(s): related, enate, enatic

Sentences with maternal as an adjective:

- His weakness seemed to bring out her maternal instincts.

- Toby is my maternal uncle.