Meaning & Definition of word "Infallible"

Infallible

/ɪnˈfælɪbəl/

adjective:

  • 1. Incapable of making mistakes or being wrong.
    • Example: The scientist believed her methods were infallible, guaranteeing accurate results.
  • 2. Certain to happen; inevitable.
    • Example: With his infallible logic, he proved that the outcome was a certainty.

Etymology

From Latin 'infallibilis', meaning 'not able to fall' or 'not liable to fail'.

Common Phrases and Expressions

infallible authority:

An authority that is believed to be incapable of making errors.

infallible proof:

Evidence that is beyond doubt; absolutely certain.

Related Words

fallible:

Capable of making mistakes or being wrong.

error:

A mistake or inaccuracy.

Slang Meanings of infallible

Meaning: Perfect or foolproof.

Example Sentence: That plan is infallible; I can't see it going wrong.

Meaning: Guaranteed to succeed.

Example Sentence: He's got an infallible way to win at that game.