sanitaryEnglishOxford English Thesaurussanitary adjective improvements in health are also the result of more sanitary conditions: hygienic, clean, germ-free, antiseptic, aseptic, sterile, sterilized, uninfected, disinfected, unpolluted, uncontaminated, salubrious, healthy, pure, wholesome. ▷antonyms insanitary.sanitary Oxford Dictionary of English