Toppling over or losing stability

Usage examples of overbalancing.

Faraday wailed, trying to twist out of his hands but overbalancing and falling to her knees in the mud.

Almost overbalancing on her plump legs, she squatted down and rested both hands in the pool of blood.

He leaned over the healer himself, almost overbalancing, and his eyes went black.

He swayed slightly, muscles adjusting to correct his overbalancing, but adjusting under some control other than his own.