Annealed wire is a softer more flexible wire, that is also more malleable than regular wire. An example of an annealed product would be a garbage bag twist tie or construction rebar, which allow these to be twisted without unraveling. The process of annealing is to soften a metal by heating it just below melting point, then having it slowly cooled. Although this may lower the tensile strength of copper, it will improve flex life and flexibility.
