IPA: /ɪmˈpruːdənt/
KK: /ɪmˈpruːdnt/
Not showing good judgment or wisdom; making decisions that are not wise or careful.
It was imprudent of him to invest all his savings in a single stock.
Imprudent is formed from "in-" (meaning not) and "prudentem" (meaning wise or careful, from the Latin root "prudentia"). The word describes a lack of wisdom or carefulness in decision-making.
Think of 'not wise' — 'in-' means not, and 'prudentem' relates to being careful or wise.