dire

adjective

Extremely serious or urgent.

SYNONYMS

acutealarmingappallingatrociousawfulcalamitouscataclysmiccatastrophicchroniccripplingcriticalcrucialcryingdesperatedevastatingdirefuldisastrousdistressingdrasticdreadfulextremefrightfulgravegrievousgrimharrowinghopelesshorribleirretrievablelousymiserableoutrageousparlouspressingruinousseriousshockingsoreterribleunspeakableurgentvitalwoefulwretched