ruinous
Definitions
Disastrous or destructive in nature or effect.
Causing or tending to cause ruin; bringing about total loss or collapse.
In a state of decay or ruin; dilapidated.
Examples
The company faced ruinous losses after the market crash.
He ignored the warnings and pursued a ruinous path of gambling.
The war had a ruinous effect on the country's fragile economy.
Synonyms
destructive catastrophic devastating disastrous damaging fatal pernicious
Antonyms
beneficial advantageous constructive helpful profitable salutary restorative