The word "more attenuate" refers to something becoming thinner or weaker. Its antonyms include: thick, strong, firm, robust, sturdy, substantial, solid, dense, compact, and muscular. If something is getting thicker, it is becoming more substantial, whereas if it's getting thinner, it is becoming weaker, and the same goes for when something is becoming stronger, firm or muscular, it is becoming less attenuate. These antonyms help provide a contrast to the concept of attenuation to understand better the characteristics of an object, material, or situation. Whether it is used in scientific fields, everyday language or in literature, antonyms are an essential part of language to help express opposite ideas or concepts effectively.