Simpered is a word used to describe someone who is smiling in a smug or silly way. However, there are many other synonyms that can be used instead of this word. Some common synonyms include smirked, grinned, giggled, chuckled, snickered, chortled, and sniggered. These words all have slightly different meanings, but they all describe someone who is smiling in a way that is not genuine or sincere. By using these synonyms, you can add variety and depth to your writing, and better convey the emotion or mood you are trying to convey. So the next time you want to describe someone smiling in a smug or silly way, consider using one of these synonyms instead of simpered.