rancour

"I could almost see the rancor in his eyes when he challenged me to a fight."

"My teacher said I could retake the test if I studied hard. "

"A wounded animal will fight like a maniac, relentless, savage and murderous."

"We challenged the boys next door to a game of football."

"The student's malice toward his classmates was evident in his cruel jokes and snide remarks. "

"In all the submissions, they found four papers that were clearly worth publishing and another dozen almosts."

"The long-standing enmity between the two rival gangs made the neighborhood unsafe for everyone. "

"The teacher had inveterate habits of arriving early and staying late, which had become deeply ingrained over the years. "

"The deepest part of the well was almost hidden by mud. "

"He was so filled with spite for his ex-wife, he could not hold down a job."

"Be sure to seat the gasket properly before attaching the cover."

"The student felt a strong hatred for the bully who constantly picked on him. "