UNCHALLENGEABLE • FREE-TRANSLATOR.COM • Definition of Unchallengeable

... attraction. Le Rouge et le Noir is not exactly rose-pink, but it derives hardly any, if any, interest from its smirches of mud and blood and blackness. In Lamiel there is little else. Moreover, that unchallengeable "possibility of humanity" which redeems not merely Le Rouge et le Noir but the less exciting books, is wanting here. Sansfin, the doctor, is a mere monstrosity in mind as well as in body, and, except perhaps when she ejaculates ...

— A History of the French Novel, Vol. 2 - To the Close of the 19th Century • George Saintsbury