Flatulently is an adverb that describes something done in a smelly or offensive manner like farting. This word can be replaced with several other synonyms such as stinkily, noxiously, odorously, and unpleasantly. If you want to talk about someone or something that smells bad, you can use words like malodorously, putridly, or fetidly. If the gas is drawn out slowly or in spurts, you can use words like windily, gassily, or fartingly. Regardless of the occasion, there are several appropriate synonyms for flatulently that you can use to describe smells that are less than pleasant.