C2adjectiveformalphilosophy
US/ɪnˈfæl.ə.bəl/
UK/ɪnˈfæl.ɪ.bəl/
never wrong and never making mistakes
In context
No doctor is infallible, so a second opinion can be useful.
Many people treat the algorithm as infallible, but it makes errors.
She had an infallible sense of direction and never got lost.
Words that go with infallible
adverb + adjective
- far from infallibleMemory is far from infallible.
- not infallibleEven the best tests are not infallible.
- rarely infallibleExperts are rarely infallible in new fields.
adjective + noun
- infallible methodThere is no infallible method for choosing a career.
- infallible guideInstinct is not an infallible guide.
- infallible judgeNobody is an infallible judge of character.
Common mistakes
Incorrect:
He is a infallible expert.Correct: He is an infallible expert.