greatworry
nounUK /ˌɡreɪtˈwʌri/
US /ˌɡreɪtˈwɜːri/
A greatworry is a very big feeling of being scared or upset about something.
She had a greatworry about her lost puppy until he came home.
OTHER MEANINGS
2. A serious problem that makes many people feel afraid.
The storm was a greatworry for the whole town.
3. A strong feeling that something bad might happen.
He felt a greatworry before his first day at school.
4. A heavy load of thoughts that keeps someone awake at night.
Her greatworry about the test kept her awake.