unmodifiable

It's also worth remembering that this "unmodifiable" pro-capitalist human nature, far from being inherent in the human character, defies the historical record.

Does capitalism equal human nature? 2007

My preferred model for health insurance is that premiums should be increased when persons have modifiable risk factors (such as tobacco use, sedentary lifestyle, or untreated hypertension) but not for unmodifiable risks (such as family history of heart disease or genetic propensity for tumors).

The Myth of the Rational Voter, Posner Edition, Bryan Caplan | EconLog | Library of Economics and Liberty 2009

While James was trying unsuccessfully to feel at home in Paris in 1872 they became friends, even though Lowell, for all his learning and versatility, was an unmodifiable Cambridge owl.

'The Complete Letters of Henry James, 1872-1876, Volume 1' 2009

By your logic, the Philadelphia Convention of 1787 was UnArticles-of-Confederational and George Washington should have arrested and exiled Franklin, Madison and the lot of them for treason in seeking to modify a document that declares itself unmodifiable.

The Volokh Conspiracy » Release the Koh Memorandum on Honduras 2009

But it implied the essential acceptance of an unmodifiable order.

Dictionary of the History of Ideas ARNALDO MOMIGLIANO 1968

But these cries and vocal utterances are limited, and comparatively unmodifiable.

Human Traits and their Social Significance Irwin Edman

Thus industry and conscientiousness and public spirit, which are clearly affected by environment, show no greater resemblance than such practically unmodifiable traits as memory, original sensitiveness to colors, sounds, and distances.

Human Traits and their Social Significance Irwin Edman

Maturity, in so far as it is mere growth independent of training, is also largely a fixed and unmodifiable condition.

Human Traits and their Social Significance Irwin Edman

For the undefined, ever-changing, protean essence, or soul, of a thing which the alchemists thought of as hidden by wrappings of properties, the exact investigations of Lavoisier, and those of others who worked on the same lines as he, substituted this definite, fixed, unmodifiable property of mass.

The Story of Alchemy and the Beginnings of Chemistry M. M. Pattison Muir

The law of God, as contained in Divine revelation, is alone unchangeable, unmodifiable.

The Continental Monthly, Vol. 6, No 2, August, 1864 Devoted to Literature and National Policy Various