WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
causing injury or blight; especially affecting with sudden violence or plague or ruin
adjective.
extremely harmful; bringing physical or financial ruin
Word Usage
"A federal judge has determined that gas pipline manager El Paso did indeed limit natural gas supplies to California, resulting in ruinous prices, rolling blackouts, and smug Cato Institute flaks wagging their fingers at hot-tubbers and environmentalists."