disconcert

"It frustrates me to do all this work and then lose it all."

"I must make this deadline or my boss will kill me!"

"Please completely fill in the box for your answer, using a number 2 pencil."

"The new schedule caused confusion among the students. "

"The siblings' constant arguments led to the disunion of their band. "

"He raised his hand to make his announcement and said "Excuse me everyone, I have an announcement to make."

"The unexpected announcement of the school trip disconcerted the students, causing them to lose their focus in class. "

"The heavy rain was unexpected; we had planned a picnic in the park. "

"The chess master's clever strategy completely discomfited his opponent, forcing him to resign after only fifteen moves. "

"Despite the noisy classroom, Sarah maintained her composure and answered the difficult question correctly. "

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

"The farmer's land was very productive, yielding a large harvest of tomatoes. "