languish

"My friend told me there was something in the box, but I didn't know what it was yet. "

"His unsuccessful attempt earned him sympathy, condolences, and an occasional good-natured ribbing."

"The long, difficult math problem disheartened the student, taking away their confidence to try more challenging questions. "

"The earthquake devastated the coastal towns, leaving them in ruins. "

"The program will run smoothly under these conditions: the computer has enough memory and the internet connection is stable. "

"My sister is very helpful, especially when it comes to organizing things. "

"Marc went to the park with his girlfriend and watched the sunset with her."

"After losing his job and his home, he became a miserable, pitied by all who knew him. "

"The houseplant, without sunlight or water, languished and eventually died. "

"He theatrically sighed and slumped onto the couch after finishing his homework. "

"The child was pretending to be asleep so he wouldn't have to eat his vegetables. "

"to neglect duty or business;  to neglect to pay debts"