jejune [dʒɪˈdʒun] a.
1.) Lacking matter; empty; void of substance.
2.) Void of interest; barren; meager; dry; as, a jejune narrative.
3.) Juvenile; childish; immature.
4.) Lacking nutritional value (GNU Collaborative International Dictionary of English).
Etymology: Latin jejunus fasting, hungry, dry, barren, scanty; of unknown origin.
" Boris: Don't you know that murder carries with it a moral imperative that transcends any notion of inherent universal free will?
Sonja: That is incredibly jejune.
Boris: That's jejune?
Boris: You have the temerity to say that I'm talking to you out of jejunosity? I'm one of the most june people in all of the Russias" (Love and Death, Woody Allen, 1975).