'unimaginatively-preserved' originates from the combination of 'unimaginative' and 'preserved', where 'unimaginative' means lacking in creativity and 'preserved' means maintained or kept in its original state.

'unimaginative' comes from the Latin word 'imaginativus', meaning 'creative', with the prefix 'un-' indicating negation. 'Preserved' comes from the Latin 'praeservare', meaning 'to keep safe'.

Initially, 'unimaginative' meant 'lacking in creativity', and 'preserved' meant 'kept safe'. Together, they evolved to describe something maintained without creativity.