catastrophic

形容词 catastrophic:

1. extremely harmful; bringing physical or financial ruin
   同义词：ruinous

1. A decisive or catastrophic conflict.
   决定性的或大规模的战争

cat.a.stroph.ic

adj.（形容词）
Of, relating to, or involving a catastrophe.
大灾难的：灾难的、与灾难有关的或卷入灾难的
Involving or resulting in substantial, often ruinous medical expense:
灾难性的：陷于或导致大量通常是毁灭性的医疗开销的：
例句：
a catastrophic illness.
一场灾难性的疾病

【引伸】
cat.astroph.ically
adv.（副词）