IPA: //ˈæb.dʒɛkt.li//
KK: /ˈæbʤɛktli/
In a way that shows extreme shame or hopelessness; very desperately.
He abjectly apologized for his mistakes, showing deep remorse.
Abjectly → It is formed from "abject" (from Latin "abjectus", meaning thrown away or cast off) and the adverbial suffix "-ly" (meaning in a manner of). The word "abjectly" means in a manner that is cast off or thrown away, often referring to a state of extreme degradation or hopelessness.
Think of being 'thrown away' ('abject') and how doing something in that way ('-ly') reflects a state of despair or degradation.
No commonly confused words.