jejune
From Longman Dictionary of Contemporary Englishjejuneje‧june /dʒɪˈdʒuːn/ adjective formal 1 SIMPLE/NOT COMPLICATEDideas that are jejune are too simple jejune political opinions2 BORINGboringOrigin jejune (1600-1700) Latin jejunus “not eating, (of food) small in amount”; influenced in meaning by French jeune “young”