Incapable of being morally corrupted.

Roget 150: unchangeable, immutable; unaltered, unalterable; not to be changed, constant; permanent etc. 141; invariable, undeviating; stable, durable; perennial etc. (diuturnal) 110^†.    fixed, steadfast, firm, fast, steady, balanced; confirmed, valid; fiducial^†; immovable, irremovable, riveted, rooted; settled, established etc. v.; vested; incontrovertible, stereotyped, indeclinable.    tethered, anchored, moored, at anchor, on a rock, rock solid, firm as a rock; firmly seated, firmly established etc. v.; deep-rooted, ineradicable; inveterate; obstinate etc. 606.    transfixed, stuck fast, aground, high and dry, stranded.    [movable object rendered unmovable] stuck, jammed; unremovable; quiescent etc. 265; deterioration etc. 659.    indefeasible, irretrievable, intransmutable^†, incommutable^†, irresoluble^†, irrevocable, irreversible, reverseless^†, inextinguishable, irreducible; indissoluble, indissolvable^†; indestructible, undying, imperishable, incorruptible, indelible, indeciduous^†; insusceptible, insusceptible of change.    ... show more

Roget 939: upright; honest, honest as daylight; veracious etc. 543; virtuous etc. 944; honorable; fair, right, just, equitable, impartial, evenhanded, square; fair and aboveboard, open and aboveboard; white [U.S.].    constant, constant as the northern star; faithful, loyal, staunch; true, true blue, true to one's colors, true to the core, true as the needle to the pole; marble-constant" [Antony and Cleopatra]; true-hearted, trusty, trustworthy; as good as one's word, to be depended on, incorruptible.    straightforward etc. (ingenuous) 703; frank, candid, open-hearted.    conscientious, tender-conscienced, right-minded; high-principled, high-minded; scrupulous, religious, strict; nice, punctilious, correct, punctual; respectable, reputable; gentlemanlike^†.    inviolable, inviolate; unviolated^†, unbroken, unbetrayed; unbought, unbribed^†.    innocent etc. 946; pure, stainless; unstained, untarnished, unsullied, untainted, unperjured^†; uncorrupt, uncorrupted; undefiled, undepraved^†, undebauched^†; integer vitae scelerisque purus [Lat.] [Horace]; justus et tenax propositi [Lat.] [Horace]. chivalrous, jealous of honor, sans peur et sans reproche [Fr.]; high-spirited.    supramundane^†, unworldly, other-worldly, overscrupulous^†.    ... show more

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