infallible

Definition of infallible

adjective
– certain to work properly or succeed
– not capable of being wrong or making mistakes
– अचूक, दोष रहित

Synonyms of infallible

faultless, flawless, impeccable, unerring, unfailing, scrupulous

Antonyms of infallible

fallible, faulty, flawed, undependable, unreliable

Word Usage

– The arrogant professor believed he was infallible on the subject of Physics.
– Your DNA at the scene is infallible evidence that you have committed the crime.