The Collaborative International Dictionary of English v.0.48:

Inelegant \In*el"e*gant\, a. [L. inelegans: cf. F.
   in['e]l['e]gant. See In- not, and Elegant.]
   Not elegant; deficient in beauty, polish, refinement, grave,
   or ornament; wanting in anything which correct taste
   requires.
   [1913 Webster]

         What order so contrived as not to mix
         Tastes, not well joined, inelegant.      --Milton.
   [1913 Webster]

         It renders style often obscure, always embarrassed and
         inelegant.                               --Blair.
   [1913 Webster]

WordNet (r) 3.0 (2006):

inelegant
    adj 1: lacking in refinement or grace or good taste [ant:
           elegant]

Moby Thesaurus II by Grady Ward, 1.0:

110 Moby Thesaurus words for "inelegant":
   Doric, all thumbs, awkward, barbaric, barbarous, beautiless,
   blemished, blotted, blunderheaded, blundering, boorish, bumbling,
   bungling, butterfingered, cacophonic, cacophonous, careless,
   chintzy, clownish, clumsy, clumsy-fisted, coarse, crass, crude,
   cumbersome, defaced, disfigured, doggerel, dysphemistic,
   dysphemized, fingers all thumbs, fumbling, gauche, gawkish, gawky,
   graceless, gross, ham-fisted, ham-handed, harsh, heavy-handed,
   homely, hulking, hulky, improper, impure, in bad taste,
   inappropriate, inconcinnate, inconcinnous, incorrect, indecent,
   indecorous, indelicate, indiscreet, infelicitous, left-hand,
   left-handed, loutish, low, lubberly, lumbering, lumpish, maladroit,
   marred, oafish, offensive, outlandish, plain, ponderous, raw,
   rough, rude, short on looks, sloppy, spoiled, stiff, tasteless,
   uglified, ugly, ugly as hell, ugly as sin, unaesthetic,
   unattractive, unbeautiful, unbecoming, unbeseeming, uncomely,
   uncourtly, uncouth, undignified, uneuphonious, unfelicitous,
   unfitting, ungainly, ungenteel, ungraceful, unhandsome, unhandy,
   unlovely, unpleasing, unpolished, unpretty, unrefined, unseemly,
   unsightly, unsuitable, untasteful, unwieldy, vulgar