[inˏfælә'biliti]
n.
绝无错误, 绝对可靠性

[ noun ]
the quality of never making an error
<noun.attribute>

Infallibility \In*fal`li*bil"i*ty\, n. [Cf. F.
infaillibilit['e].]
The quality or state of being infallible, or exempt from
error; inerrability.

Infallibility is the highest perfection of the knowing
faculty. --Tillotson.

{Papal infallibility} (R. C. Ch.), the dogma that the pope
can not, when acting in his official character of supreme
pontiff, err in defining a doctrine of Christian faith or
rule of morals, to be held by the church. This was decreed
by the Ecumenical Council at the Vatican, July 18, 1870.