adj. 25B6; adjective
a devastating cyclone : DESTRUCTIVE, ruinous, disastrous, catastrophic, calamitous, cataclysmic; harmful, damaging, injurious, detrimental; crippling, violent, savage, fierce, dangerous, fatal, deadly, lethal.
devastating news : SHATTERING, shocking, traumatic, overwhelming, crushing, distressing, terrible.
(informal) he presented devastating arguments : INCISIVE, highly effective, penetrating, cutting; withering, blistering, searing, scathing, fierce, savage, stinging, biting, caustic, harsh, unsparing.