Pooh-pooh is a term used to describe a dismissive and contemptuous act towards an idea or opinion. There are several synonyms for pooh-pooh such as scorn, belittle, mock, deride, depreciate, ridicule, sneer, scoff, and disparage. These words are used to express a negative and disdainful opinion regarding someone's thoughts, beliefs, or actions. Each of these synonymous words carries a different tone, and their usage depends on the severity of the situation. These words should be used with caution since they have the potential to hurt someone's feelings. Therefore, it is essential to choose the right synonym that reflects one's opinion or critique while maintaining sensitivity towards others.