I. noun 1. a waterproof jacket, typically with a hood, of a kind originally used in polar regions. 2.
‹derogatory› a studious or obsessive person with unfashionable and largely solitary interests.
• with his thick specs, shabby shoes, and grey suit, he looks a bit of an anorak.
II. derivatives 1. anoraked adjective
2. anorakish adjective
3. anoraky adjective
– origin 1920s: from Greenlandic anoraq. The British English informal sense dates from the 1980s and derives from the anoraks worn by trainspotters, regarded as typifying this kind of person.