imprudent

Etymology

From Middle French imprudent, from Latin imprūdens (“not foreseeing, ignorant”), prefix im- (“not”) + prūdens (“foreseeing, skilled, judicious”).

adj

1. Not prudent; lacking prudence or discretion; indiscreet; injudicious; not paying attention to the consequences of one's actions
   Here Her Majesty took a great dislike at the imprudent behavior of many of the Ministers and Readers. 1711, John Strype, Life and Acts of Matthew Parker, Archbishop of Canterbury
   ‘It was a most 'imprudent thing to go up Helvellyn in such weather,’ said Fräulein Müller, shaking her head gloomily as she ate her fish. 1853, Mary Elizabeth Braddon, chapter 3, in Phantom Fortune, archived from the original on 2012-04-12
   My uncle, falling back into his absorbing contemplations, had already forgotten my imprudent words. I merely say imprudent, for the great mind of so learned a man of course had no place for love affairs, and happily the grand business of the document gained me the victory. 1864, Jules Verne, chapter 3, in Journey to the Interior of the Earth, archived from the original on 2012-04-12