vitriolic

"I got a letter from my brother."

"My brother argued with his friend bitterly about the baseball game. "

"The documents pertaining to my car insurance claim are now all submitted. "

"The teacher's criticism scathed his confidence, leaving him feeling deeply hurt. "

"The school is located five miles of the town center. "

"The twins resemble each other."

"The student derived the answer to the math problem from the formula. "

"The caustic spilled on the science lab table quickly ate away at the plastic. "

"He might get cancer, or be hit by a bus, or God knows what."

"The chemistry lab stored bottles of various chemicals, including vitriol, for experiments. "

"The politician received a lot of public criticism for his controversial stance on the issue."

"He had a strange taste in his mouth."