1. 
[syn: unsanitary, insanitary, unhealthful]
The Collaborative International Dictionary of English v.0.48:
Unsanitary \Unsanitary\
   See sanitary.
WordNet (r) 3.0 (2006):
unsanitary
    adj 1: not sanitary or healthful; "unsanitary open sewers";
           "grim and unsanitary conditions" [syn: unsanitary,
           insanitary, unhealthful] [ant: healthful,
           sanitary]
Moby Thesaurus II by Grady Ward, 1.0:
21 Moby Thesaurus words for "unsanitary":
   bad, bad for, contaminated, foul, harmful, injurious, insalubrious,
   insanitary, morbific, noisome, noxious, pathogenic, peccant,
   pestiferous, polluted, septic, tainted, unhealthful, unhealthy,
   unhygienic, unwholesome