---
title: unspecified
framework: dispatch
role: symbol
role_heading: Type Property
path: dispatch/dispatchqos/unspecified
---

# unspecified

The absence of a quality-of-service class.

## Declaration

```swift
static let unspecified: DispatchQoS
```

## See Also

### Getting the Predefined QoS Objects

- [userInteractive](dispatch/dispatchqos/userinteractive.md)
- [userInitiated](dispatch/dispatchqos/userinitiated.md)
- [default](dispatch/dispatchqos/default.md)
- [utility](dispatch/dispatchqos/utility.md)
- [background](dispatch/dispatchqos/background.md)