The word "pubescences" implies the state of being covered in fine, downy hair, such as the soft hair on a newly growing plant or the fine hairs that appear on the human body during adolescence. Antonyms for this word would include terms such as "baldness," which implies the lack of hair. Other antonyms might include words like "smoothness," "shininess," or "bareness," which all suggest the absence of hair or any kind of fuzziness. Other possible antonyms for "pubescences" could include terms like "glabrousness," which implies the smoothness of a surface or object, or "austere," which suggests a condition of stark simplicity or bareness.