directly opposite; right in front
Used for facing something head-on, often in confrontational or direct-confrontation contexts. Common in phrases like 真っ向から対立する (to be in direct opposition).
His opinion is in direct opposition to my thinking.
Challenge head-on.
middle of the forehead
Refers to the center of the forehead; often appears in contexts like striking or pointing at the forehead.
Land a blow right on the forehead.
helmet front
Specifically the front part of a helmet; a somewhat specialized term.
The family crest is painted on the front of the helmet.
The two of them were in direct opposition on the issue.
He flatly denied the criticism.
The rookie team challenged the powerhouse head-on.