Antonyms of adj sanitary

1 sense of sanitary

Sense 1
sanitary (vs. unsanitary), healthful -- (free from filth and pathogens; "sanitary conditions for preparing food"; "a sanitary washroom")

unsanitary (vs. sanitary), insanitary, unhealthful -- (not sanitary or healthful; "unsanitary open sewers"; "grim and unsanitary conditions")
        => unhygienic -- (unclean and constituting a likely cause of disease; "pathetic dogs kept in small unhygienic cages")

Similarity of adj sanitary

1 sense of sanitary

Sense 1
sanitary (vs. unsanitary), healthful -- (free from filth and pathogens; "sanitary conditions for preparing food"; "a sanitary washroom")
       => hygienic, hygienical -- (tending to promote or preserve health; "hygienic habits like using disposable tissues"; "hygienic surroundings with plenty of fresh air")