Thesaurus.com
Dictionary.com
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.

He said the boats went “dead in the water” as an automatic fail-safe, which prevented them from causing damage or injury.

From The Wall Street Journal • Nov. 27, 2025

Congress created the Insurrection Act as a fail-safe in response to armed mobs attacking their neighbors and organized militias seeking to overthrow elected officials.

From Los Angeles Times • Oct. 16, 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

There was a fail-safe command that would temporarily render Ellie incapable of making decisions.

From Slate • Jan. 27, 2024

She referred to it as nature’s fail-safe, as if that could draw the poison from the sting.

From "We Are the Ants" by Shaun David Hutchinson




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "fail-safe" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com