This word is from the Spanish infalible.
impalíble
infallible
To be in infallible means to be incapable of making mistakes or being wrong. For example, many Catholics believe that the Pope is infallible.
impalíbleng boses ng awtoridad
infallible voice of authority
The Spanish noun form is infalibilidad.
impalíbilidad
infallibility
MGA KAHULUGAN SA TAGALOG
impalíble: hindi nagkakamali
impalíble: tiyak na magtatagumpay
impalíble: sa simbahang Katolika, hindi nagkakamali sa pagpapahayag ng dogma bílang ipinakahulugang doktrina

misspelling: infalibalidad