sorrow
noun
an emotion of great sadness associated with loss or bereavement
“he tried to express his sorrow at her loss”
Oppositesjoysadness associated with some wrong done or some disappointment
“he drank to drown his sorrows”
“he wrote a note expressing his regret”
something that causes great unhappiness
“her death was a great grief to John”
Synonymsgriefthe state of being sad
“she tired of his perpetual sadness”
verb
feel grief
Synonymsgrieve
Source: WordNet 3.1, Princeton University