Snottily is a word used to describe someone or something in a contemptuous, rude, and arrogant manner. Some synonyms for it could be haughtily, arrogantly, disdainfully, or condescendingly. Haughtily implies an attitude of superiority or haughtiness, while arrogantly evokes a sense of entitlement or self-importance. On the other hand, disdainfully often suggests a feeling of contempt or disgust, and condescendingly implies a patronizing or belittling manner. Other alternatives could include superciliously, loftily, or pompously. All these words share a common denotation of expressing superiority or arrogance towards others, albeit in slightly different ways or degrees.