0 a person who often worries, especially about things that are not important:
Worry is a prevalent habit, and since it is annoying rather than disabling, many worrywarts don't recognize themselves as anxious.
Another surprise they found was that people who were consistently too cheerful or too optimistic didn't live as long as their worrywart counterparts.
Instant messaging turned out to offer each of us a sort of wormhole through the normal worrywart process.
This is partly why women are more likely to suffer from generalized anxiety disorder (also known as the "worrywart disorder") whereby everyday activities can cause excessive and ongoing anxiety.
