— disastrously , adv. — disastrousness , n.
/di zas"treuhs, -zah"streuhs/ , adj.
1. causing great distress or injury; ruinous; very unfortunate; calamitous: The rain and cold proved disastrous to his health.
2. Archaic. foreboding disaster.
[ 1580-90; desastreux, It disastroso. See DISASTER, -OUS ]