Douglas Harper's Etymology Dictionary
mid-14c., from un- (1) + changeable.
Wiktionary
a. Not changeable; incapable of being changed or of changing; immutable. n. Something that cannot be changed.
WordNet
adj. not changeable or subject to change; "a fixed and unchangeable part of the germ plasm"-Ashley Montagu; "the unchangeable seasons"; "one of the unchangeable facts of life" [ant: changeable]
Usage examples of "unchangeable".
Essence that pervades them, conferring that unchangeable life upon them, once you perceive the judgement and wisdom and knowledge that are theirs, you can but smile at all the lower nature with its pretention to Reality.
But as I idly scanned the paragraph, a flash of thought passed through me with the violence of an electric shock: what if the obscure and horrible race of the hills still survived, still remained haunting wild places and barren hills, and now and then repeating the evil of Gothic legend, unchanged and unchangeable as the Turanian Shelta, or the Basques of Spain?
I hold, is transmitted as the basis of heredity from one generation to another, is absolutely unchangeable or totally uninfluenced by forces residing in the organism within which it is transformed into germ-cells.
The hips and elbows and other bones of Nature stick out here and there in the shape of rocks which give character to the scenery, and an unchangeable, unpurchasable look to a landscape that without them would have been in danger of being fattened by art and money out of all its native features.
Professor Helmholtz of Bonn, in which it is maintained that a certain portion of force is lost in every natural process, being converted into unchangeable heat, so that the universe will come to a stand-still at last, all force passing into heat, and all heat into a state of equilibrium.
Although the reward or punishment of the body depends upon the reward or punishment of the soul, nevertheless, since the soul is changeable only accidentally, on account of the body, once it is separated from the body it enters into an unchangeable condition, and receives its judgment.
The lank, curve-necked beasts that carried them plodded at an unchangeable rate.
You may have some limited success in getting your narcissist to tone down on the really harmful behaviours THAT AFFECT YOU, which emanate from the unchangeable WHAT the narcissist is.
They have not been staggered by the great changeableness of the soul,-an attribute which it would be impious to ascribe to the divine nature,-but they say it is the body which changes the soul, for in itself it is unchangeable.
As for Tull and his churchmen, when they had harassed her, perhaps made her poor, they would find her unchangeable, and then she would get back most of what she had lost.
As for those 457 who own, indeed, that it was made by God, and yet ascribe to it not a temporal but only a creational beginning, so that in some scarcely intelligible way the world should always have existed a created world they make an assertion which seems to them to defend God from the charge of arbitrary hastiness, or of suddenly conceiving the idea of creating the world as a quite new idea, or of casually changing His will, though He be unchangeable.
But since the mind itself, though naturally capable of reason and intelligence is disabled by besotting and inveterate vices not merely from delighting and abiding in, but even from tolerating His unchangeable light, until it has been gradually healed, and renewed, and made capable of such felicity, it had, in the first place, to be impregnated with faith, and so purified.
It seemed unchangeable, sprawling across her desk like one of the ancient pyramids, structures pressed onto the horizon so long they seemed more a thing of nature than something constructed by men.
The grace of God could not have been more graciously commended to us than thus, that the only Son of God, remaining unchangeable in Himself, should assume humanity, and should give us the hope of His love, by means of the mediation of a human nature, through which we, from the condition of men, might come to Him who was so far off,-the immortal from the mortal.
Since, therefore, they saw that body and mind might be more or less beautiful in form, and that, if they wanted form, they could have no existence, they saw that there is some existence in which is the first form, unchangeable, and therefore not admitting of degrees of comparison, and in that they most rightly believed was the first principle of things which was not made, and by which all things were made.