All fallible antonyms
fal·li·ble
F f adj fallible
- infallible — absolutely trustworthy or sure: an infallible rule.
- reliable — that may be relied on or trusted; dependable in achievement, accuracy, honesty, etc.: reliable information.
- unerring — not erring; not going astray or missing the mark: The captain set an unerring course for home.
- perfect — conforming absolutely to the description or definition of an ideal type: a perfect sphere; a perfect gentleman.
- strong — having, showing, or able to exert great bodily or muscular power; physically vigorous or robust: a strong boy.
- certain — If you are certain about something, you firmly believe it is true and have no doubt about it. If you are not certain about something, you do not have definite knowledge about it.
- correct — If something is correct, it is in accordance with the facts and has no mistakes.
- definite — If something such as a decision or an arrangement is definite, it is firm and clear, and unlikely to be changed.
- sure — free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data.