Thriven is an uncommon word that means to flourish, prosper, or succeed in achieving growth or progress. There are several synonyms for the word, including thriving, booming, blooming, blossoming, and prospering. Additionally, the words growing, developing, advancing, and thriving can also be used to describe the action of thriving. Essentially, any word that indicates growth and progress can be used as a synonym for thriven. These words are often used to describe businesses, industries, and individuals who have achieved notable success. Whether you prefer the word thriving or prospering, all convey the idea that someone or something is flourishing and doing well.