disadvantageous

from WordNet (r) 3.0 (2006)
disadvantageous
    adj 1: constituting a disadvantage [ant: {advantageous}]
from The Collaborative International Dictionary of English v.0.48
Disadvantageous \Dis*ad`van*ta"geous\, a. [Cf. F.
   d['e]savantageux.]
   Attended with disadvantage; unfavorable to success or
   prosperity; inconvenient; prejudicial; -- opposed to
   {advantageous}; as, the situation of an army is
   disadvantageous for attack or defense.
   [1913 Webster]

         Even in the disadvantageous position in which he had
         been placed, he gave clear indications of future
         excellence.                              --Prescott.
   -- {Dis*ad`van*ta"geous*ly}, adv. --
   {Dis*ad`van*ta"geous*ness}, n.
   [1913 Webster]
from Moby Thesaurus II by Grady Ward, 1.0
49 Moby Thesaurus words for "disadvantageous":
      baleful, baneful, corroding, corrosive, corrupting, corruptive,
      counterproductive, damaging, deadly, deleterious, depreciative,
      depreciatory, detracting, detrimental, disparaging, disserviceable,
      distressing, harmful, hurtful, injurious, lethal, malefic,
      malevolent, malign, malignant, mischievous, noisome, noxious,
      ominous, pejorative, pernicious, poisonous, prejudicial, scatheful,
      slighting, toxic, unadvantageous, uncomplimentary, unfavorable,
      unprofitable, unrewarding, useless, venenate, veneniferous,
      venenous, venomous, vicious, virulent, worthless
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