► clean not dirty or messy: Are your hands clean? Let me get you a clean towel.
► spotless completely clean with no dirt or dirty marks: Her kitchen is always spotless.
► immaculate formal so clean and neat that something seems perfect: The house was immaculate when the guests started to arrive.
► pristine formal completely clean and not damaged at all, as if something has never been used: The beaches on the island are still pristine.
► hygienic clean, so that people will not get diseases: The cows must be milked in hygienic conditions for the milk to be sold.
► sanitary clean and not likely to cause diseases, especially diseases caused by body waste: It was a cheap motel, but at least the bathroom seemed sanitary.
► sterile completely clean and having no bacteria in a way that is safe to use in medicine or science: The nurse put a sterile bandage on the wound.