IPA: /dʒɪˈdʒuːnli/
KK: /dʒɪˈdʒuːnli/
In a way that is simple, dull, or lacking in interest or significance.
The lecture was delivered jejunely, leaving the audience disengaged.
Jejunely → It is formed from "jejunus" (from Latin, meaning empty or barren) and the adverbial suffix "-ly" (meaning in a manner of). The word "jejunely" means in a manner that is empty or lacking in substance.
Think of 'jejunus' meaning empty, and remember that 'jejunely' describes doing something in an empty or lacking way.
No commonly confused words.