1. Lacking in nutritive value
   "the jejune diets of the very poor"
   - insubstantial 
2. Displaying or suggesting a lack of maturity
   "jejune responses to our problems"
   - adolescent, juvenile, puerile 
3. Lacking interest or significance or impact
   "jejune novel"
   - insipid

See also: immature, jejunely, jejuneness, jejunity, uninteresting, unwholesome

Encyclopedia: Jejune

• ameban
• amebiasis
• amebic
• amebic dysentery
• amebiosis
• ameboid
• amebous
• Amedeo Avogadro
• Amedeo Modigliano
• ameer
• Ameiuridae
• Ameiurus
• Ameiurus Melas
• Amelanchier
• Amelanchier alnifolia
• Amelanchier bartramiana
• amelia
• Amelia Earhart
• ameliorate
• ameliorating
• amelioration
• ameliorative
• ameliorator
• amelioratory
• ameloblast