collision course

noun

1. a course or path of a vehicle, projectile, etc., that, if unchanged, will lead to a collision with another object.
2. any plan, attitude, or course of action that leads to a confrontation or conflict with another.

Word History and Origins

Origin of collision course¹

First recorded in 1940–45

Example Sentences

The possibility of increased deportations and workplace raids, however, could put him on a collision course with Democratic-leaning states and jurisdictions that may decide to push back or not co-operate.

From BBC

More often than not, the perceived frontrunner is rather more circumspect about putting themselves on a potential collision course with calamity or embarrassment than the perceived challenger.

From BBC

It puts him on an imminent collision course with a larger passenger plane.

From Los Angeles Times

More recently, science fiction movies like "Deep Impact" depict comets the size of Mount Everest on a collision course with Earth, prompting more contemporary characterizations of apocalyptic scenarios.

From Salon

That rejection, along with their refusal to answer questions Thursday, seemed to place the state agency in a collision course with the Defense Department.

From Los Angeles Times