miss by a mile v. phr.,
informal 1. To shoot at something and be far from hitting it; not hit near.
Jack's first shot missed the target by a mile. 2. To be very wrong; be far from right.
Lee tried to guess on the examination, but his answers missed by a mile. 3. To fail badly; not succeed at all.
John Brown wanted to be governor but in the election he missed by a mile. [TahlilGaran] English Idioms Dictionary ▲