disharmonious

from WordNet (r) 3.0 (2006)

disharmonious
    adj 1: lacking in harmony [syn: {discordant}, {disharmonious},
           {dissonant}, {inharmonic}]

from The Collaborative International Dictionary of English v.0.48

Disharmonious \Dis`har*mo"ni*ous\, a.
   Unharmonious; discordant. [Obs.] --Hallywell.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

71 Moby Thesaurus words for "disharmonious":
      absonant, antagonistic, antipathetic, at cross-purposes,
      at loggerheads, at odds, at variance, at war, atonal, cacophonic,
      cacophonous, clashing, colliding, conflicting, contradictory,
      contrary, cracked, cranky, cross, diaphonic, differing,
      disaccordant, disagreeable, disagreeing, disconsonant, discordant,
      discrepant, disharmonic, disproportionate, dissentient, dissident,
      dissonant, divergent, flat, grating, harsh, hostile, immelodious,
      immiscible, inaccordant, incompatible, inharmonic, inharmonious,
      jangling, jarring, musicless, negative, nonmelodious, off, off-key,
      off-tone, out of accord, out of pitch, out of tone, out of tune,
      out of whack, raucous, repugnant, sharp, shrill, sour, strident,
      tuneless, uncongenial, unharmonious, unmelodious, unmusical,
      untunable, untuned, untuneful, variant