ill-advised

ajattelematon, harkitsematon Carried out without the benefit of wise counsel or careful deliberation, or carried out with unwise counsel
2013, Phil McNulty, "http://www.bbc.co.uk/sport/0/football/23830980", BBC Sport, 1 September 2013:

Ashley Young's ill-advised attempt to dribble out of danger ended in a corner and when Steven Gerrard's delivery was headed goalwards by Daniel Agger, Sturridge deflected it home from virtually on the line.