superficially

Neal A. Maxwell: These same Church members know just enough about the doctrines to converse superficially on them, but their scant knowledge about the deep doctrines is inadequate for deep discipleship (see 1 Corinthians 2:10). Thus uninformed about the deep doctrines, they make no deep change in their lives. They lack the faith to "give place" (Alma 32:27) consistently for real discipleship.

(Book: "Men and Women of Christ," 1991, pp. 2-3)