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 + withThe comet was on a collision course with the planet.
—often used figurativelyThe 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
The keyhole is an area in space where the gravity of a planet, like Jupiter, could change the asteroid's altered trajectory once more — potentially putting it on a collision course with our planet.
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Elizabeth Howell, Space.com, 10 Sep. 2025
Set during the Great Depression, a Milwaukee detective’s quest to find a Wisconsin cheese heiress lands him in Hungary and on a collision course with history to meet Nazis, spies, and swing musicians in the octogenarian literary giant’s first novel in over a decade.
—Tomi Obaro, Vulture, 9 Sep. 2025
The system gives pilots two aural alerts when an unauthorized aircraft enters the runway on a collision course with the authorized aircraft.
—Asher Redd, FOXNews.com, 1 Sep. 2025
The Royals and Mariners remain on a collision course.
—Kansas City Star, 31 Aug. 2025
See All Example Sentences for on a collision course
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Elizabeth Howell, Space.com, 10 Sep. 2025
Set during the Great Depression, a Milwaukee detective’s quest to find a Wisconsin cheese heiress lands him in Hungary and on a collision course with history to meet Nazis, spies, and swing musicians in the octogenarian literary giant’s first novel in over a decade.
—Tomi Obaro, Vulture, 9 Sep. 2025
The system gives pilots two aural alerts when an unauthorized aircraft enters the runway on a collision course with the authorized aircraft.
—Asher Redd, FOXNews.com, 1 Sep. 2025
The Royals and Mariners remain on a collision course.
—Kansas City Star, 31 Aug. 2025
See All Example Sentences for on a collision course
Cite this Entry
“On a collision course.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20a%20collision%20course. Accessed 18 Sep. 2025.
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