Any of several machines or devices in which a part impacts on another, or on a material. / An object which impacts another.

plural of impactor

In an impactful fashion.

Without impact.

plural of impactite

Any rock created or modified by the impact of a meteorite.

The state or condition of being impacted.

(finance) A characteristic of transactions in which the parties to a contract are inclined to operate opportunistically in the presence of uncertainty and complexity surrounding the contract.

(geology) The mixing of soil by impact with meteors etc

Absence of impact.