[1] : The Collaborative International Dictionary of English v.0.48

wasteful \waste"ful\, a.
   1. full of waste; destructive to property; ruinous; as,
      wasteful practices or negligence; wasteful expenses.
      1913 webster

   2. expending, or tending to expend, property, or that which
      is valuable, in a needless or useless manner; lavish;
      prodigal; as, a wasteful person; a wasteful disposition.
      1913 webster

   3. waste; desolate; unoccupied; untilled. obs.
      1913 webster

            in wilderness and wasteful desert strayed.
                                                  --spenser.
      1913 webster

   syn: lavish; profuse; prodigal; extravagant.
        1913 webster -- waste"fully, adv. --
        waste"fulness, n.
        1913 webster
see also:
waste"fully waste"fulness 

[2] : WordNet (r) 2.0

wasteful
     adj 1: inefficient in use of time and effort and materials; "a
            clumsy and wasteful process"; "wasteful duplication of
            effort"; "uneconomical ebb and flow of power" syn: uneconomical
     2: tending to squander and waste ant: thrifty
     3: laying waste; "when wasteful war shall statues overturn"-
        shakespeare
see also:
uneconomical thrifty 

[3] : Moby Thesaurus II by Grady Ward, 1.0

51 moby thesaurus words for "wasteful":
   baneful, calamitous, cataclysmal, cataclysmic, catastrophic,
   consuming, consumptive, deadly, demolishing, demolitionary,
   depredatory, desolating, destroying, destructive, devastating,
   disastrous, dissipative, doomful, easy come, easy go, extravagant,
   fatal, fateful, fratricidal, incontinent, intemperate, internecine,
   lavish, nihilist, nihilistic, overgenerous, overlavish,
   overliberal, penny-wise and pound-foolish, pound-foolish, prodigal,
   profligate, profuse, ravaging, ruining, ruinous, self-destructive,
   spendthrift, subversionary, subversive, suicidal, vandalic,
   vandalish, vandalistic, wasting, withering

Wasteful >> W Words
Wasteful, definition of term: Wasteful
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