aseptic

free from filth, infection, or dangers to health patients with compromised immune systems must be treated in aseptic environments Synonyms sanitary, germfree, hygienic, sterileRelated Words germproof; antibacterial, antibiotic, antiseptic, germicidal, microbicidal; clean, immaculate, pristine, spick-and-span (or spic-and-span), spotless, squeaky-clean, stainless, unsoiled, unstained, unsullied; beneficial, healthful, healthy, restorative, salubrious, salutary, salutiferous, wholesome; pure, taintless, undefiled, unpolluted, untainted; abluted, bleached, cleansed, purified, scrubbed, washed, whitenedNear Antonyms infectious, miasmic, pathogenetic, pathogenic, poisonous, sickening, toxic; bedraggled, besmirched, dingy, dirty, draggled, dusty, filthy, foul, grimy, grubby, grungy, mucky, muddy, nasty, smirched, soiled, sordid, stained, sullied, unclean, uncleanly, unwashed; insalubrious, noxious, unhealthful, unhealthy, unwholesome; defiled, polluted, tainted, unsterilizedAntonyms germy, insanitary, unhygienic, unsanitary, unsterile