Devoid of significance / interest / dull. It is derived from the Latin jejunus, which means “empty of food,” “meager,” or “hungry.” As an adjective, it can be used in several ways as detailed in examples.
She made jejune remarks about life and art.
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.