jejune

(s) lacking in nutritive value
- the jejune diets of the very poor
insubstantial,
(s) displaying or suggesting a lack of maturity
- adolescent insecurity
- jejune responses to our problems
- their behavior was juvenile
- puerile jokes
juvenile, puerile, adolescent,
(s) lacking interest or significance or impact
- an insipid personality
- jejune novel
insipid,

insubstantial juvenile puerile adolescent insipid

jejunely jejuneness