Incapable of being bribed or morally corrupted; inflexibly just and upright.
That cannot be corrupted, esp. morally.
Origin of incorruptible
From Middle French incorruptible, from Latinincorruptibilis
Incorruptible Sentence Examples
He was absolutely incorruptible, thus standing, morally as well as intellectually, far above the level of his age.
Patriotic, energetic, independent, incorruptible, shrewd, fair-minded, he was endowed not only with great sympathy with progress, but also with a full faculty for resistance to mere democraticism.
The Manichaeans were therefore, by reason of their dualism, arch-enemies no less of Christian art than of relics and cross-worship; the Monophysites were equally so by reason of their belief that the divine nature in Christ entirely absorbed and sublated the human; they shaded off into the party of the aphthartodoketes, who held that his human body was incorruptible and made of ethereal fire, and that his divine nature was impassible.
To defend it on the ground that it created and stimulated the national consciousness is hardly reconcilable with the historic remark of the voter who voted against Aristides because he wished to hear no more of his incorruptible integrity; moreover in democratic Athens the "national consciousness" was, if anything, too frequently stimulated in the ordinary course of government.
Fabricius was regarded by the Romans of later times as a model of ancient simplicity and incorruptible integrity.