When someone is deeply emotional and unable to control their tears, we often say that they are "in tears." However, there are several other ways to express this sentiment. For example, we might say they are weeping, crying, sobbing, or bawling. Another option is to say they are teary-eyed or emotional. There are also more slang terms such as "balling" or "waterworks." Whatever words you choose, it's important to be respectful and empathetic towards those who are experiencing strong emotions.