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Definitions

fail-safe

[feyl-seyf] / ˈfeɪlˌseɪf /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The boats had rejected their inputs and automatically idled as a fail-safe, making them “dead” in the water.

From The Wall Street Journal • Nov. 27, 2025

“Within moments, the robot came to a full stop in response to sensing a pedestrian in close proximity, which is considered its fail-safe state.”

From Los Angeles Times • Sep. 25, 2025

There’s no 100% safe way to lift 500 pounds, just like there is no fail-safe way of throwing 100 mph.

From Los Angeles Times • Jul. 20, 2025

Margery had extremely strong principles about fail-safe commands.

From Slate • Jan. 27, 2024

Encoding provided a measure of security but was not fail-safe.

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau