'uninquisitive' originates from the prefix 'un-' meaning 'not' and the word 'inquisitive,' which comes from Latin 'inquisitivus,' meaning 'eager to seek or inquire.'

'inquisitivus' transformed into the Old French word 'inquisitif,' and eventually became the modern English word 'inquisitive.' The prefix 'un-' was added to form 'uninquisitive.'

Initially, 'inquisitive' meant 'eager to seek or inquire,' and 'uninquisitive' has retained the meaning of 'not eager to seek or inquire.'