Adjective: proactive prow'ak-tiv
- (of a policy, person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens
"The company took a proactive approach to cybersecurity"
- (psychology) descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently
"proactive inhibition"; "proactive interference"
See also: active
Antonym: retroactive
Encyclopedia: Proactive, Preemptive Operations Group