antagonized

"The siblings were antagonistic toward each other, constantly arguing and competing for attention. "

"How dare you, I protest!"

"He aggravated his traffic violation by driving away from the police officer. "

"My sister is very helpful, especially when it comes to organizing things. "

"My brother constantly helps his younger sister with her homework, demonstrating his steadfast loyalty and support. "

"The feeling is difficult to describe, but not unpleasant."

"Go easy on him: he is but a child."

"The stretching of the rubber band showed its elasticity. "

"After his soccer game, the athlete stretched his quadriceps to prevent muscle soreness in the front of his thigh. "

"The announcement of the verdict brought a violent reaction."

"The athlete felt a sharp pain in his hamstring after sprinting, suggesting a possible muscle strain. "

"The teacher announced that there would be no school tomorrow due to the snow. "