During the power surge, several accidental lights flickered on in the hallway, confusing everyone.

After staring at the bright red square for a minute, she saw an accidental colour linger at the edge of her vision.

The sudden accidental chord in the middle of the movement surprised the audience.

During the study, the researchers noted several accidental points that affected the outcome.

From the train window, the tracks seemed to converge toward an accidental point on the distant horizon.