Sillies, also known as foolishness or nonsense, have many synonyms in the English language. Some common words used to describe sillies include absurdity, craziness, idiocy, frivolity and irrationality. Other synonyms might include tomfoolery, zaniness, nonsensicality, buffoonery and ridiculousness. Whether it's laughing at a silly joke or engaging in an activity that seems a bit ridiculous, we all experience moments of silliness from time to time. Using these synonyms can help us better understand and describe these moments. So, let's embrace our own silliness and appreciate the humor and joy it brings to our lives.