The Collaborative International Dictionary of English v.0.48:
Insanitary \In*san"i*ta*ry\, a. Not sanitary; unhealthy; unsanitary; as, insanitary conditions of drainage. [1913 Webster]WordNet (r) 3.0 (2006):
insanitary adj 1: not sanitary or healthful; "unsanitary open sewers"; "grim and unsanitary conditions" [syn: unsanitary, insanitary, unhealthful] [ant: healthful, sanitary]