Uncontrollable Fear

Frightened is a condition that can be applied by powerful and imposing enemies. The effect was added in the Fallout 76 update Wastelanders.

Overview
The only enemies that can cause the frightened condition are the wendigo colossus and Earle Williams. The attack comes in a burst and is applied to any and all players in proximity from the attack regardless of stats.

Once afflicted by the attack, the perspective switches to third-person (if in first-person), and the characters holster weapons and run away in the opposite direction of the enemy that caused the attack. A frightened Vault Boy icon appears above the head of those affected. The effect lasts for four seconds before full control is regained.

Some control is retained while frightened, and if fast enough, the player character can turn around and automatically run toward the attacking enemy.