Collins COBUILD Advanced Learner's English Dictionary - collision course

1. If two or more people or things are on a collision course, there is likely to be a sudden and violent disagreement between them. The two communities are now on a collision course... Britain’s universities are set on a collision course with the government. N-SING: usu on a N, oft N with n 2. If two or more people or things are on a collision course, they are likely to meet and crash into each other violently. There is an asteroid on a collision course with the Earth. N-SING: usu on a N, oft N with n