from
The Collaborative International Dictionary of English v.0.48
Ruinous \Ru"in*ous\, a. [L. ruinosus: cf. F. ruineux. See
{Ruin}.]
1. Causing, or tending to cause, ruin; destructive; baneful;
pernicious; as, a ruinous project.
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After a night of storm so ruinous. --Milton.
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2. Characterized by ruin; ruined; dilapidated; as, an
edifice, bridge, or wall in a ruinous state.
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3. Composed of, or consisting in, ruins.
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Behold, Damascus . . . shall be a ruinous heap.
--Isa. xvii.
1.
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Syn: Dilapidated; decayed; demolished; pernicious;
destructive; baneful; wasteful; mischievous.
[1913 Webster] -- {Ru"in*ous*ly}, adv. --
{Ru"in*ous*ness}, n.
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