meaning of ruinous
1. Causing, or tending to cause, ruin; destructive; baneful; pernicious; as, a ruinous project.
2. Characterized by ruin; ruined; dilapidated; as, an edifice, bridge, or wall in a ruinous state.
3. Composed of, or consisting in, ruins.
4. causing injury or blight; especially affecting with sudden violence or plague or ruin; "the blasting effects of the intense cold on the budding fruit"; "the blasting force of the wind blowing sharp needles of sleet in our faces"; "a ruinous
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