Pugnacious, Reprehensible, Brittle, Deleterious, Enmity, Heinous, Malfeasance, Malice, Putrid, Rancorous, Toxic, Archaic

pugnacious- combative; belligerent
reprehensible- worthy of blame
brittle- easily broken when subjected to pressure
deleterious- having a harmful effect; injurious
enmity- mutually hatred or ill well
heinous- hatefully evil; abominable
malfeasance- wrongdoing, misconduct
malice- extreme ill will or sight
putrid- rotten
rancorous- hateful; marked by deep-seated ill will
toxic- poisonous
archaic- characteristics of an earlier period

Pugnacious Pablo was the rudest and most unstable person. If you said the slightest critique about him, he would want to fight you. He always thought the other person was the reprehensible one. While truly, his actions were the deleterious ones. The rest of the class and he had an enmity between us. But most of my classmates were too scared to stand up to him. They were brittle. Once they got to his face, they would quiver with fear and fall agreed with whatever he saud. His malice put fear in them and sometimes made them feel like they were the one who had done the malfeasance. When really, his heinous actions were the ones that deserved all the blame. He was such a putrid kid. He was only toxic to our class until he realized that his rancorous behavior was not because he hated our class, but he was used to doing the same things that his family had done. Then, he realized that that was archaic and he did not have to be the way his family had been for years. He could create a new way of handling things. He left that old fashioned way of handling matters and became a nicer and more patient person.