inadequate vs jejune

inadequate and jejune both are adjectives.

Word	Noun	Adjective	Verb	Adverb
inadequate	No	Yes	No	No
jejune	No	Yes	No	No

As adjectives, inadequate and jejune are synonyms defined as:

Other synonyms of inadequate include poor, short.

inadequate (adjective)	jejune (adjective)
lacking the requisite qualities or resources to meet a task	displaying or suggesting a lack of maturity
of insufficient quantity to meet a need	of insufficient quantity to meet a need
	lacking interest or significance or impact