Unscrubbed can be described by the following synonyms: dirty, unwashed, unsanitary, grimy, unclean, polluted, contaminated, tainted, foul, and sullied. These words describe the state of an object or surface that has not been cleaned or scrubbed in a while, leading to a buildup of dirt, germs, and bacteria. Unscrubbed floors, walls, and utensils can be dangerous to health as they harbor harmful microorganisms that can cause infections. It is therefore necessary to regularly scrub surfaces and utensils to maintain clean, hygienic environments, especially in hospitals, restaurants, and homes.