IPA: /ˈmɔːrnfəl.nəs/
KK: /ˈmɔrnfəl/
The quality or state of feeling or expressing deep sadness or sorrow.
The mournfulness in her voice made everyone feel the weight of her loss.
Mournfulness → It is formed from "mourn" (from Old English "murnan", meaning to grieve or lament) and "-fulness" (meaning the state of being full of). The word "mournfulness" refers to the state of being full of grief or sorrow.
Think of the act of grieving ('mourn') and how it creates a state of being filled with sadness ('-fulness'). This helps you remember that mournfulness is the feeling of being deeply sad.