worrywart
/ˈwɜriˌwɔrt/
noun
- A person who worries a lot, especially about things that are unlikely to happen.
- Don't be a worrywart — the test will be fine if you studied.
- My dad is such a worrywart; he calls me every hour when I drive at night.
- She's a bit of a worrywart, always checking the locks three times before bed.
Antonyms