Catachrestic is a rare word that refers to the incorrect use of words or the use of a word in a way that is not in agreement with its accepted meaning. There are many synonyms that can be used in place of this uncommon word, such as misuse, abuse, impropriety, malapropism, solecism, barbarism, and aberration. Each of these words accurately conveys the idea of using language incorrectly or in an unconventional way. Catachrestic is an interesting word that adds a unique depth to the discussion of language usage, but it may not be commonly known or used. The synonyms provide a diverse range of options to communicate the same idea in a more accessible way.