# !(_:) Returns a predicate which evaluates to `true` if `operand` evaluates to `false`. ``` func ! (operand: QueryPredicate) -> QueryPredicate ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)