The term "blue funk" is often used to describe a state of melancholy or depression. Synonyms for this term include feelings of sadness, despair, gloom, or despondency. Other interchangeable phrases that convey the same sentiment include feeling down, low, or dejected. One might be said to feel blue, sad, or disappointed when in a blue funk, and expressions like heartache, sorrow, or moroseness could also be used. Whether experiencing a temporary case of the blues or struggling with long-term depression, there are many different words and phrases to describe those difficult emotional lows.