antimagnetic

[ an-tee-mag-net-ik, an-tahy- ]
/ ˌæn ti mægˈnɛt ɪk, ˌæn taɪ- /

adjective

resistant to magnetization.
(of a precision instrument, watch, etc.) having the critical parts composed of antimagnetic materials, and hence not seriously affected in accuracy by exposure to magnetic fields.

Origin of antimagnetic

First recorded in 1945–50; anti- + magnetic

British Dictionary definitions for antimagnetic

antimagnetic
/ (ˌæntɪmæɡˈnɛtɪk) /

adjective

of or constructed of a material that does not acquire permanent magnetism when exposed to a magnetic field an antimagnetic watch