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False Negative

nounverified·updated Aug 28, 2026

1. An instance in which a security tool intended to detect a particular threat fails to do so. 2. Incorrectly classifying malicious activity as benign.

MWEFalse Negative

Senses

Classification: True vs. False and Positive vs. Negative

an outcome where the model incorrectly predicts the negative class.

National Security Commission on Artificial Intelligence: The Final Report

An example in which the predictive model mistakenly classifies an item as in the negative class.

Trustworthy Machine Learning

A false negative is denying an applicant who should be approved

Classifications

Entity Type

Metric82%llm-generatedllm:claude-haiku-4-5
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

synonym
Type II error (in statistics)
plural
False Negatives
possessive
False Negative's
pluralpossessive
False Negatives'