The quality of never making mistakes.
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Catholic AnswerInfallibility is quite limited, it is freedom from error in teaching the universal Church in matters of faith or morals. As defined by the First Vatican Council: "The Roman Pontiff, when he speaks ex cathedra-that is, when in discharge of the office of pastor and teacher of all Christians, by virtue of his supreme apostolic authority, de defines a doctrine regarding faith or morals to be held by the universal Church, by the divine assistance promised to him in Blessed Peter, is possessed of that infallibility with which the divine Redeemer willed that his Church should be endowed in defining doctrine regarding faith or morals; and therefore such definitions are irreformable of themselves, and not in virtue of consent of the Church" (Denzinger 3074).from
The Catechism of the Catholic Church, second edition, English translation 1994
891 "The Roman Pontiff, head of the college of bishops, enjoys this infallibility in virtue of his office, when, as supreme pastor and teacher of all the faithful - who confirms his brethren in the faith - he proclaims by a definitive act a doctrine pertaining to faith or morals . . . The infallibility promised to the Church is also present in the body of bishops, when, together with Peter's successor, they exercise the supreme Magisterium," above all in an Ecumenical Council. (Lumen Gentium 25; cf. Vatican Council I: Denzinger-Schönmetzer, Enchiridion Symbolorum, definitionum et declarationum de rebus fidei et morum {1965} 3074) When the Church through its supreme Magisterium proposes a doctrine "for belief as being divinely revealed," (Dei Verbum 10 § 2) and as the teaching of Christ, the definitions "must be adhered to with the obedience of faith." (Lumen Gentium 25 § 2) This infallibility extends as far as the deposit of divine Revelation itself. (Cf. Lumen Gentium 25)
Infallible means literally "unable to fail" i.e. is necessarily correct or without error.
Incapable of making mistakes or being wrong.
His reputation for infallibility will help secure him the promotion.
Devout Catholics tend to believe in the infallibility of the Pope. Papal infallibility in Church teaching is similar to a "Circular Reference" in a spreadsheet.
Pigs have no infallibility, for nobody knows if they are ever right.
She's a nice person, but she has delusions of infallibility. She'll never, ever admit she might be wrong.
i am orthodox and personally i have never heard of this papal infallibility been used in the church or dogmata.
dependability, faithfulness, safety
Infallibility
Infallible is an adjective.
"Infallibility" means nothing one says or does is ever wrong. It's understood by the followers of all the world's religions that only God is infallible and that only the Messengers of God (e.g., Moses, Jesus, etc.) have infallibility conferred upon them because They speak for God.
The noun form is infallibility.
The Pope's observations, when delivered ex cathedra, are considered to have infallibility, that is the impossibility of error.The child was infallible after his poor grade on the test.
It is said that a Pope has infallibility.