antiknocking (adjective)

1. In the science fiction novel, the protagonist invents an antiknocking device that revolutionizes space travel.

2. The magical potion acted as an antiknocking agent in the fantasy world, enhancing the powers of the wizards' spells.

3. In the action-packed cinema blockbuster, the hero's car was equipped with an antiknocking system that allowed for high-speed chases without any engine knock.

4. The horror movie took an unexpected turn when the haunted car suddenly developed a severe engine knock, adding an eerie element to the suspenseful scenes.