downbeat (downbeats plural )
1 adj If people or their opinions are downbeat, they are deliberately casual and not enthusiastic about a situation.
usu ADJ n (Antonym: upbeat)
...a downbeat assessment of 1992's economic prospects.
2 adj If you are feeling downbeat, you are feeling depressed and without hope., (Antonym: upbeat)
They found him in gloomy, downbeat mood.