---
title: "failing(rationale:)"
framework: evaluations
role: symbol
role_heading: Instance Method
path: "evaluations/metric/failing(rationale:)"
---

# failing(rationale:)

Returns a metric with a failing result.

## Declaration

```swift
func failing(rationale: String? = nil) -> Metric
```

## Mentioned in

Evaluating language model responses

## See Also

### Producing results

- [passing(rationale:)](evaluations/metric/passing(rationale:).md)
- [scoring(_:rationale:)](evaluations/metric/scoring(_:rationale:).md)
- [ignore(rationale:)](evaluations/metric/ignore(rationale:).md)