imprudente
/impɾuˈdente/ · B2 · adj
imprudent, ill-advised
⚠️ im- (not) + prudente (prudent) = not careful, reckless
Spanish imprudente is built like English imprudent: the prefix im- means not, and prudente means careful or wise. Add them and you get someone who acts without thinking ahead, like crossing a road without looking.