sorrow
sor-row
noun
A feeling of deep sadness or regret, often caused by loss or disappointment.
"He felt great sorrow after the news."
verb
To feel or express deep sadness or regret about something or someone.
"She sorrowed for her departed friend."
Thesaurus
Synonyms: grief, grieve, sorrowfulness, sadness, ruefulness, rue, regret
Antonyms: joy, joyfulness, joyousness