sorrow B1

/ˈsɑɹoʊ/ A deep feeling of sadness, especially after a loss.

sorrowful C2+

/ˈsɑroʊfəl/ feeling or expressing deep sadness or grief

sorrowfully C2+

/ˈsɑroʊfəli/ in a manner expressing or marked by deep sadness

sorrowfulness C2+

/ˈsɑroʊfəlnəs/ the state of feeling or showing deep sorrow