More robustious usually refers to something that is loud, energetic or boisterous. Antonyms of this word can be used to describe something that is quiet, calm or peaceful. Some examples of antonyms for more robustious are serene, tranquil, peaceful, quiet, gentle, subdued, docile, calm, controlled, and relaxed. These words have a contrasting effect on the aspect of more robustious, providing a more subdued and calm view of the situation than might be implied by the original word. Therefore, Antonyms can be a useful tool for writers to add variety and subtlety to their descriptions and avoid being repetitive.
