pole‧axed /ˈpəʊlækst $ ˈpoʊl-/
adjective [not before noun] especially British English1. informal very surprised and shocked:
I was poleaxed when I heard I’d passed the exam.2. unable to stand because something has hit you very hard:
He staggered and collapsed as if poleaxed. [TahlilGaran] Dictionary of Contemporary English ▲