Jejune/dʒɪˈdʒuːn/ Definition 1 of 3Pro Tip 1/3Overly Simple Use 'jejune' to imply something is too basic or lacks depth, often in intellectual contexts. The plot of that movie was disappointingly jejune. Pro Tip 2/3Negatively Boring 'Jejune' often carries a negative connotation, suggesting dullness and unoriginality. The lecture was jejune— I learned nothing new. Pro Tip 3/3Avoid Overuse Don't overuse 'jejune'; it could make your own language seem unvaried. Using 'jejune' repeatedly made his critique seem jejune itself.