on a collision course

idiom

: moving so as to crash into each other if one or the other does not change direction

The two airplanes were on a collision course.

—often + with

The comet was on a collision course with the planet.

—often used figuratively

The government's policies are putting us on a collision course with economic disaster.

Examples of on a collision course in a Sentence

Recent Examples on the Web

Investigators concluded that the blackout that left the Dali cargo ship powerless and on a collision course with the bridge was caused by a loose wire. —Adam Thompson, CBS News, 10 Dec. 2025

But when tragedy struck, the two — both unacknowledged addicts — found themselves on a collision course with catastrophe. —Desiree Anello, PEOPLE, 3 Dec. 2025

Zohran Mamdani has emerged from the mayoral election as New Yorkers' top choice at the ballot box and may be on a collision course with the White House over immigration policies. —Billal Rahman, MSNBC Newsweek, 5 Nov. 2025

But this worsening food crisis now on a collision course with the issue Democrats are holding firm to fix in this shutdown, looming, skyrocketing health care costs for some 20 million Americans insured through the Affordable Care Act. —ABC News, 2 Nov. 2025

Rhymes for on a collision course

• bourse
• coarse
• force
• gorse
• hoarse
• horse
• norse
• source
• concourse
• divorce
• endorse
• enforce