- without interest or significance; dull; insipid: a jejune novel.
- juvenile; immature; childish: jejune behavior.
- lacking knowledge or experience; uninformed: jejune attempts to design a house.
- deficient or lacking in nutritive value: a jejune diet.
- simple; naive; unsophisticated
- insipid; dull; dry
- lacking nourishment; insubstantial or barren
1610s, “dull in the mind, flat, insipid,” from Latin ieiunus “empty, dry, barren,” literally “fasting, hungry,” of obscure origin.