---
title: UIUserInterfaceSizeClass.unspecified
framework: uikit
role: symbol
role_heading: Case
path: uikit/uiuserinterfacesizeclass/unspecified
---

# UIUserInterfaceSizeClass.unspecified

Indicates the size class hasn’t been specified.

## Declaration

```swift
case unspecified
```

## See Also

### Constants

- [UIUserInterfaceSizeClass.compact](uikit/uiuserinterfacesizeclass/compact.md)
- [UIUserInterfaceSizeClass.regular](uikit/uiuserinterfacesizeclass/regular.md)