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.
  ◄ ►
  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]