Disastrous — synonyms, definition

1. disastrous (a)

adverse awful calamitous catastrophic destructive detrimental dire disturbing evil excessive extreme fatal foreboding ill inauspicious lethal menacing miserable negative severe • • •

2. disastrous (Adjective)

black fateful

disastrous (Adjective) — (of events) having extremely unfortunate or dire consequences; bringing ruin. ex. "the battle was a disastrous end to a disastrous campaign"