1 causing or likely to cause death घातक, जानलेवा a deadly poison/weapon/disease
2 very great; complete अत्यधिक; पूर्ण They’re deadly enemies.
3 completely; extremely पूर्णतया; अत्यधिक I’m not joking. In fact I’m deadly serious.
4 extremely accurate, so that no defence is possible अचूक (निशानेबाज़) That player is deadly when he gets in front of the goal.