Charmingness is a word that is often associated with certain types of people or things that are attractive, charismatic, and likeable. However, there are several antonyms for this word that can describe the opposite qualities. Examples of these antonyms include unappealing, unpleasant, unattractive, dislikable, repellent, repulsive, and uncharming. These words suggest that the person or thing lacks charm, warmth, and magnetism. They can be used to describe someone who is not easy to get along with or a thing that is not pleasing to the senses. Using these antonyms can help us to be more precise in our language and convey nuanced meanings.