The Collaborative International Dictionary
Inerrable
Inerrable \In*er"ra*ble\, a. [L. inerrabilis. See In- not, and
Err.]
Incapable of erring; infallible; unerring. ``Inerabble and
requisite conditions.''
--Sir T. Browne. ``Not an inerrable
text.''
--Gladstone.
Wiktionary
inerrable
a. Incapable of error; infallible.