Catastrophic — synonyms, definition

1. catastrophic (a)

adverse calamitous deplorable destructive detrimental disastrous fatal hapless ill-fated ill-starred inauspicious lamentable lethal luckless miserable negative tormented unfavourable unlucky unpropitious • • •

2. catastrophic (Verb)

calamitous deplorable ill-starred lamentable miserable tormented wretched

3. catastrophic (Adjective)

ruinous

catastrophic (Adjective) — Extremely harmful; bringing physical or financial ruin. ex. "a catastrophic depression" ex. "catastrophic illness"