head-on  {adj.} or  {adv. phr.}
1. With the head or front pointing at; with the front facing; front end to front end.
Our car skidded into a head-on crash with the truck.
In the fog the boat ran head-on into a log.
There is a head-on view of the parade from our house.
Compare: FACE-TO-FACE.
Contrast: REAR-END.
2. In a way that is exactly opposite; against or opposed to in argument.
If you think a rule should be changed, a head-on attack against it is best.
Tom did not want to argue head-on what the teacher said, so he said nothing.
Categories: face-to-face {adj.} {adv. phr.}