Antisepticizes is a verb that means to clean or purify something using an antiseptic solution. Some antonyms for antisepticizes are contaminate, infect, dirty, soil, and stain. Contaminate refers to making something impure or unsanitary by adding harmful substances or pollution. Infect means to introduce disease-causing microorganisms or viruses into a person or animal. Dirty refers to making something unclean or covered in dirt or filth. Soil means to make something dirty or stained with dirt, mud, or other substances. Finally, stain refers to marking or discoloring something permanently, often due to a spill or other accidental incident.