'indecisive' originates from Latin, specifically the word 'indecisus,' where 'in-' meant 'not' and 'decidere' meant 'to decide.'

'indecisus' transformed into the French word 'indécis,' and eventually became the modern English word 'indecisive' through Middle English.

Initially, it meant 'not decided,' and over time it evolved into its current meaning of 'unable to make decisions quickly or effectively.'