infaillible

infallible, unerring

adjective an-fah-YEEB Rare

Origin: Latin infallibilis

Usage Note

Infaillible is gender-invariable: un instinct infaillible / une méthode infaillible. In Catholic theology, infaillible refers specifically to papal infallibility (l'infaillibilité pontificale). In everyday speech it simply means something that never fails or goes wrong.

Examples

"Il a un sens de l'orientation infaillible."

Natural Translation

He has an unerring sense of direction.

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