Hackler is a word that has various synonyms that can be used in place of it. Some of the synonyms for Hackler are wool comber, carder, or spinner. Another synonym for Hackler is flax dresser. Hacklers or flax dressers were individuals who made flax fibers into threads for the purpose of weaving. Other terms that can be used in place of Hackler include hackman, rougher, or a person who performs the process of hackling, which is done to remove the impurities from flax fibers. In essence, Hackler is a term used to describe individuals who work with fibers to create thread, yarn, or other textiles.