Aggressively self-confident or assertive; bullheaded
Optimistic; overly or foolishly optimistic or hopeful
Characterized by rising value.
Having a muscular physique, built 'like a bull'
Direct, abrupt, blunt or unequivocal; not prevaricating.
Of a collision, from the front or in the direction of motion.
A collision from the front.
With the front of a vehicle.
With direct confrontation.