mournful
Definitions
Feeling, expressing, or inducing sadness, regret, or grief.
Gloomy, melancholy, or dismal in appearance or sound.
Examples
A mournful melody drifted from the violin, echoing through the empty hall.
The stray dog let out a mournful howl as the storm began to rage outside.
She cast a mournful glance at the old house before driving away for the final time.