ru·in·ous /ˈruənəs/
 (a.)破壞性的,招致毀滅的,零落的
 Ru·in·ous a.
 1. Causing, or tending to cause, ruin; destructive; baneful; pernicious; as, a ruinous project.
    After a night of storm so ruinous.   --Milton.
 2. Characterized by ruin; ruined; dilapidated; as, an edifice, bridge, or wall in a ruinous state.
 3. Composed of, or consisting in, ruins.
    Behold, Damascus . . . shall be a ruinous heap.   --Isa. xvii. 1.
 Syn: -- Dilapidated; decayed; demolished; pernicious; destructive; baneful; wasteful; mischievous.
 -- Ru*in*ous*ly adv. -- Ru*in*ous*ness, n.
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 ruinous
      adj 1: extremely harmful; bringing physical or financial ruin; "a
             catastrophic depression"; "catastrophic illness"; "a
             ruinous course of action" [syn: catastrophic]
      2: 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 war" [syn: blasting]