sorrow

nouns

an emotion of great sadness associated with loss or bereavement
"he tried to express his sorrow at her loss"
antonym
is a type of (narrower)
emotions experienced when not in a state of well-being
sadness associated with some wrong done or some disappointment
"he drank to drown his sorrows"; "he wrote a note expressing his regret"; "to his rue, the error cost him the game"
something that causes great unhappiness
"her death was a great grief to John"
the state of being sad
"she tired of his perpetual sadness"

verbs

feel grief
is derived from