an impact can mean the result of two objects forcibly colliding
colliding_with_obstacle is colliding. colliding is irreflexive_action. aberration is optical_phenomenon. colliding is event. inelastic_collision is not colliding. inelastic_collision is colliding. colliding is not irreflexive_action. harmed is impairing. projectile_impact is not inelastic_collision. projectile_impact is inelastic_collision.