Head-on
Part of speech: adjective
Definition: Direct, abrupt, blunt or unequivocal; not prevaricating. Of a collision, from the front or in the direction of motion.
Part of speech: noun
Definition: A collision from the front.
Frontal
Part of speech: adjective
Definition: Of, relating to, directed toward, or situated at the front: a frontal attack.Anatomy# Of or relating to the forehead or frontal bone.# Of or relating to the frontal plane.Of or relating to a weather front.
Part of speech: noun
Definition: A drapery covering the front of an altar.The façade of a building.The bone at the front of the skull, behind the forehead.