Wordnet 3.0
ADJECTIVE (1)
1. 
 detrimental to physical or moral well-being; 
- Example: "unwholesome food"- Example: "unwholesome habits like smoking"
The Collaborative International Dictionary of English v.0.48:
Unwholesome \Unwholesome\
   See wholesome.
WordNet (r) 3.0 (2006):
unwholesome
    adj 1: detrimental to physical or moral well-being; "unwholesome
           food"; "unwholesome habits like smoking" [ant:
           wholesome]
Moby Thesaurus II by Grady Ward, 1.0:
39 Moby Thesaurus words for "unwholesome":
   bad, bad for, baneful, contaminated, deleterious, detrimental,
   diseased, disgusting, foul, harmful, hideous, horrible, hurtful,
   injurious, insalubrious, insanitary, loathsome, mischievous,
   morbid, morbific, noisome, noxious, obscene, pathogenic,
   pathological, peccant, pernicious, pestiferous, polluted,
   repellent, repulsive, septic, sickly, tainted, unhealthful,
   unhealthy, unhygienic, unsanitary, unsound