disquietude

"Feeling a strong sense of uneasiness, Sarah couldn't concentrate on her math homework. "

"If we tap the maple trees, we can get maple syrup!"

"Before the big exam, Maria felt a strong anxiety about failing. "

"The constant noise from the construction site made it hard to concentrate on my homework. "

"The sudden loud noise caused a feeling of disquiet among the students during the exam. "

"The unexpected phone call late at night unsettled me. "

"The dancer's nervous muscles tensed before her performance. "

"My mother's instance that I finish my homework before dinner was quite strong. "

"an officer betrayed the city"

"A report by the telecommunications ministry on the phone network revealed a severe capacity problem."

"The boy was fidgeting in his chair during the long test because he was nervous. "

"He is a student of life."