Jeering at someone, or to jeer at someone, is a very mean-spirited act that can have a serious impact on the person being targeted. If you're looking for synonyms for this phrase, there are plenty of them to choose from. Deride, mock, ridicule, taunt, and tease are just a few examples. Other options include sneer, belittle, insult, scorn, and scoff at. While it can be difficult to understand why some people feel the need to jeer at others, it's important to remember how damaging this behavior can be. Choosing a different, kinder way to express yourself is always the better choice.