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false-negative result

📖 ISTQB Glossary

Official ISTQB Definition

A test result which fails to identify a defect that is actually present in a test object.

3 Ways to Think About It

💡
The Quick Take

When a test passes but shouldn't - a defect exists but wasn't detected.

🔍
Look Closer

A missed bug - the test said OK but the system actually has a problem.

🎯
The Bottom Line

The dangerous test result that creates false confidence.

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