Mental illness is a broad term, and there are many synonyms that can be used to describe specific conditions. For example, depression, anxiety disorders, bipolar disorder, and schizophrenia are all types of mental illnesses. Other synonyms might include psychiatric disorders, psychological disorders, brain disorders, or emotional disorders. While some people might use the term "crazy" to describe someone with a mental illness, this is not an appropriate or respectful term. Instead, it's important to use language that is compassionate, accurate, and stigma-free when discussing mental health. By using appropriate language, we can help reduce the shame and discrimination that often accompanies mental illness.