catastrophic

adjective
1
causing many people to suffer
فاجعه‌بار, مصیبت‌بار, مصیبت‌آمیز
synonym disastrous
2
causing a lot of problems for people
فاجعه‌بار, مصیبت‌بار, ویرانگر, زیان‌بار
a catastrophic failure/collapse/defeat
(US English)a catastrophic illness
synonym disastrous