ubitačan

1. lethal; deadly; fatal
   Ovaj otrov je ubitačan već u malim dozama. — This poison is lethal even in small doses.
2. colloq. (of heat, boredom etc.) killer; unbearable
   Napolju je ubitačna vrućina, ne izlazim do večeri. — The heat outside is killer, I'm not going out till evening.
   Predavanje je bilo ubitačno dosadno. — The lecture was deadly boring.
3. (of effects, criticism) devastating; ruinous
   Posledice krize bile su ubitačne za male firme. — The effects of the crisis were devastating for small businesses.
4. (in sports) deadly; lethal
   Imaju ubitačan napad i brzu kontru. — They have a deadly attack and fast counters.

In speech the adverb ubitačno often intensifies an adjective: ubitačno dosadan.