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

undesirable \undesirable\
   see desirable.
see also:
desirable 

[2] : WordNet (r) 2.0

undesirable
     adj 1: not desirable; "undesirable impurities in steel";
            "legislation excluding undesirable aliens" ant: desirable
     2: not worthy of being chosen especially as a spouse syn: unsuitable
     n : one whose presence is undesirable; "rounding up vagrants and
         drunks and other undesirables"
see also:
desirable unsuitable 

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

106 moby thesaurus words for "undesirable":
   dp, ishmael, bad, bad child, bad example, bad man, bad news,
   bad person, bad woman, bitter, castaway, declasse, derelict,
   disagreeable, dislikable, disliked, displaced person, displeasing,
   disreputable, disreputable person, distasteful, evictee,
   exceptionable, exile, expatriate, expellee, futile, ill-advised,
   ill-considered, ill-favored, ill-suited, ill-timed, impolitic,
   impossible, improper, inadmissible, inadvisable, inappropriate,
   inapt, incongruous, indefensible, inept, inexpedient, infelicitous,
   inopportune, intolerable, leper, mal a propos, malapropos,
   objectionable, objectionable person, obnoxious, offensive,
   out of place, outcast, outcast of society, outcaste, outlaw,
   pariah, persona non grata, reject, repugnant, social outcast, sour,
   thankless, ugly, unacceptable, unacceptable person, unagreeable,
   unalluring, unappealing, unappetizing, unasked, unattractive,
   unbecoming, unbefitting, unbidden, undelectable, undelicious,
   unengaging, unenjoyable, unfit, unfitting, unfortunate, unhappy,
   uninvited, uninviting, unlikable, unmeet, unpalatable, unpleasant,
   unpleasing, unprofitable, unsavory, unseasonable, unseemly,
   unsuitable, untasteful, untenable, untimely, untouchable, unwanted,
   unwelcome, unwise, unworthy, wrong

Undesirable >> U Words
Undesirable, definition of term: Undesirable
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