collision course

collision course

n.

A course, as of moving objects or opposing philosophies, that will end in a collision or conflict if left unchanged: two planes on a collision course; dissidents on a collision course with the regime.

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collision course

Noun

1. a trajectory of movement likely to result in a collision

2. a course of action likely to result in a serious disagreement or confrontation: the union is on an inevitable collision course with the government

Thesaurus

Noun	1.	collision course - a course of a moving object that will lead to a collision if it continues unchanged track, path, course - a line or route along which something travels or moves; "the hurricane demolished houses in its path"; "the track of an animal"; "the course of the river"
	2.	collision course - a course of action (following a given idea) that will lead to conflict if it continues unabated course of action, course - a mode of action; "if you persist in that course you will surely fail"; "once a nation is embarked on a course of action it becomes extremely difficult for any retraction to take place"