'unrepresentative' originates from the prefix 'un-' meaning 'not' and the word 'representative', which comes from Latin 'repraesentare', meaning 'to show or exhibit'.

'Representative' evolved from the Latin word 'repraesentare', which transformed into the Old French 'representer', and eventually became the modern English word 'representative'.

Initially, 'representative' meant 'to show or exhibit', but over time it evolved to mean 'typical of a class or group'.