infallibly
adv/ɪnˈfæl.ɪ.bli/
Etymology From infallible + -ly.
1
In an infallible manner.
- The pope speaks infallibly ex cathedra.
- [I]n such way [the formation of political clubs], most infallibly of all, does Social Unrest exhibit itself; find solacement, and also nutriment.1837, Thomas Carlyle, chapter V, in The French Revolution: A History […], volume II (The Constitution), London: Chapman and Hall, →OCLC, book I (The Feast of Pikes), page 30: