GRANDMOTHERLINESS Meaning of GRANDMOTHERLINESS in English ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ ̷ ̷ ̷ ̷ noun : a grandmotherly quality : grandmotherly qualities Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012