Open English Wordnet
Adjectives
(s)inadequate, poor, short, jejuneof insufficient quantity to meet a need“an inadequate income”, “a poor salary”, “money is short”, “on short rations”, “food is in short supply”, “short on experience”, “the jejune diets of the very poor”
(s)adolescent, jejune, juvenile, pueriledisplaying or suggesting a lack of maturity“adolescent insecurity”, “jejune responses to our problems”, “their behavior was juvenile”, “puerile jokes”