Definition
Responding to events after they occur, rather than anticipating and preparing for them in advance. In a situational awareness context, a reactive pilot deals with problems as they arise instead of staying ahead of the aircraft and the flight.
Plain English
Acting only after something has already happened, instead of planning ahead. A reactive pilot is always catching up to the airplane rather than staying ahead of it.
Context Anchor
Seen in instrument flying and situational awareness discussions, especially when describing a pilot who is starting to fall behind the airplane.
Derivation
From Latin 're-' (back) and 'agere' (to act) — literally 'to act back.' A reactive pilot acts in response to what has already occurred, rather than acting first to prevent it.
Why Pilots Care
Reactive behavior increases workload and risk because the pilot is constantly catching up instead of maintaining control of the flight path and systems.
Intuition Check
Reactive does not simply mean “quick” or “alert” here. It means the pilot’s action begins after the change or problem has already appeared, instead of being planned ahead of time.
Example Sentence 1
By rushing the descent checklist only after ATC issued the descent clearance, the pilot was being reactive instead of anticipating the step-down.
Example Sentence 2
Training emphasizes moving from a reactive mindset to one that anticipates traffic and weather changes.