Antonyms for the word "be smirches" include words that signify the opposite meaning, such as "brightens," "polishes," "cleanses," "purifies," and "decontaminates." The word "be smirches" means to tarnish, stain, or soil something, often in a way that damages its reputation. Therefore, its antonyms imply that the action is one of restoring or enhancing something's original state of purity, brightness, or polish. In everyday language, these antonyms can refer to a range of different actions, from washing away dirt and grime to repairing a damaged reputation, depending on the context in which they are used.