1
[ adjective ] displaying or suggesting a lack of maturity

Examples

"adolescent insecurity" "jejune responses to our problems" "their behavior was juvenile" "puerile jokes"

Related terms

immature

2
[ adjective ] lacking in nutritive value

Synonyms

insubstantial

Examples

"the jejune diets of the very poor"

Related terms

unwholesome

3
[ adjective ] lacking interest or significance

Synonyms

insipid

Examples

"an insipid personality" "jejune novel"

Related terms

uninteresting

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