anguish

"Throughout my life, I have always failed."

"The math test was excruciating; I struggled with every problem. "

"It was evident she was angry, after she slammed the door."

"The student anguished over the difficult math problem. "

"Exhausted, he slumped down onto the sofa."

"The extreme of the workday was the three-hour meeting. "

"He is a student of life."

"During the centuries, the people of Ireland struggled constantly to assert their right to govern themselves."

"The lemonade was a clear solution of lemon juice and water. "

"The noisy construction next door was a constant distress for the students trying to study. "

"The complicated instructions on the new software difficult me from completing the project on time. "

"My classmates and I are working on a group project for science. "