Definition- Zoology. assuming colors and forms that effect deceptive camouflage.
Origin- Apatetic stems from the Greek word apatētikós meaning "fallacious," drawing on the Greek verb apateúein, "to deceive." It entered English in the late 1800s.
Citations: I am apatetic, adapting to each new environment so that my true self, if indeed one exists, remains safely invisible.(Todd Wiggins, Zeitgeist, 1996)