Adjective : the malleable mind of a child.    From Dictionary.com. 

The trays on which their food had appeared were smooth, unmalleable metal.    From Wordnik.com.  [Splinter Of The Mind's Eye]

It needs to be smolten and poured and once set, is pretty much unmalleable?.    From Wordnik.com.  [Wolverine- An Open Letter to Deadpool Fans] Reference

When she opened the door she saw him as something fixed and Godlike as he had always been, as older people are to younger, rigid and unmalleable.    From Wordnik.com.  [Tender is the Night] Reference

Chouake bemoaned just one Senator as being unmalleable - Virginia Senator Jim Webb - though they successfully procured 491 meetings with other members of Congress during the campaign.    From Wordnik.com.  [Jewish-American PAC Boasts of Instigating War With Iran] Reference

If we have made such vast strides and so rapid a development in those few years of our national life, with the heterogeneous and unmalleable materials with which we had to deal, converting the filth of.    From Wordnik.com.  [The Continental Monthly, Vol. 6, No 4, August, 1864 Devoted To Literature And National Policy] Reference

She had been at Paradise only two weeks, but they had been weeks of sun and soft winds and sweet smells, and the impressionable surface of her mind, that beneath was so shallow and so unmalleable, was gradually responding to the influences around her.    From Wordnik.com.  [Secret Bread] Reference

From Cato he had experienced no such insult as he had met with from M. M.rcellus, and M.rcellus received permission to return to Rome; but Cato was of an unmalleable nature, and preferred, to an ignoble silence in Italy, the noble silence of the grave.    From Wordnik.com.  [The Atlantic Monthly, Volume 13, No. 80, June, 1864] Reference

The Motley Fool's disclosure policy is entirely unmalleable.    From Wordnik.com.  [How Steel Margins Get Flat Rolled (CMC, MT, NUE, PKX, RA, STLD)] Reference

The materials she had to work upon were stubborn and unmalleable.    From Wordnik.com.  [A girl's life in Virginia before the war,] Reference

Hepzibah's mind was too unmalleable to take new impressions so readily as Clifford's.    From Wordnik.com.  [House of the Seven Gables] Reference

But the course of events is sometimes a most unmalleable thing, as he was presently to learn.    From Wordnik.com.  [The Honorable Senator Sage-Brush] Reference

The quality of Hepzibah's mind was too unmalleable to take new impressions so readily as Clifford's.    From Wordnik.com.  [The House of the Seven Gables] Reference

He is a man of unmalleable habits, and wears his dress of the same fashion as that of twenty years ago.    From Wordnik.com.  [Passages from the American Notebooks, Volume 1] Reference

Who can bear sorrow without such change, till age has fixed the lines of the face, or till care has made them hard and unmalleable?.    From Wordnik.com.  [He Knew He Was Right] Reference

From these peculiarities, and others allied to them, springs the universally unmalleable character of the ancient forms of property.    From Wordnik.com.  [Ancient Law Its Connection to the History of Early Society] Reference

For we are told that when hot, they quenched it in vinegar, to make it brittle and unmalleable, and consequently unfit for any other service.    From Wordnik.com.  [Ideal Commonwealths] Reference

I have, indeed, some idea that Mr. Herries has already discovered that I am made of different and more unmalleable metal than he had at first believed.    From Wordnik.com.  [Redgauntlet] Reference

With the unbending uprightness of the Grimkie forebears there went a prosaic and unmalleable strain destructive alike of sentiment and the artistic ideals.    From Wordnik.com.  [The Grafters] Reference

But political and economic progress are obstructed because existing political and economic organizations are almost entirely unmalleable by the general will.    From Wordnik.com.  [The National Being Some Thoughts on an Irish Polity] Reference

In such inadequate language my feelings struggled for expression: they could not get it; speech, brittle and unmalleable, and cold as ice, dissolved or shivered in the effort.    From Wordnik.com.  [Villette] Reference

But two things had conspired to give her the unmalleable quality just described -- a natural disposition to confide, first and foremost, on all occasions, in her own sagacity, and a vivid impression made upon her mind by a childhood of poverty.    From Wordnik.com.  [Stories by American Authors (Volume 4)] Reference

He had laid the author off, and was as purely a practical man of nautical affairs as would be found in any shipping office in the city; and it needed no close observer to see that the native element in him was of a very obstinate and unmalleable nature.    From Wordnik.com.  [Nathaniel Hawthorne] Reference

If intelligence is innate or even just unmalleable past a certain young age, those with high intelligence are unable to attribute their own successes to personal dedication, creativity, education, hard work, a strong personality, the liberal values they were raised with, and the like.    From Wordnik.com.  [The Audacious Epigone] Reference

But I remember yet more vividly the strangeness of it all, and the uncanny sensation that the fight itself, the street-lamp, the crowd, and the dim houses around were unreal as a dream: that, and the unnatural hardness of my opponent's face, which seemed the one unmalleable part of him.    From Wordnik.com.  [Poison Island] Reference

To make a lively and entertaining narrative for children, with such unmalleable material as is presented by the sombre, stern, and rigid characteristics of the Puritans and their descendants, is quite as difficult an attempt as to manufacture delicate playthings out of the granite, rocks on which.    From Wordnik.com.  [Grandfather's Chair] Reference

To make a lively and entertaining narrative for children, with such unmalleable material as is presented by the sombre, stern, and rigid characteristics of the Puritans and their descendants, is quite as difficult an attempt, as to manufacture delicate playthings out of the granite rocks on which.    From Wordnik.com.  [True Stories of History and Biography] Reference

Into this poem he seems to have collected all his powers; and after this he did not often bring upon his anvil such stubborn and unmalleable thoughts; but, as a specimen of his abilities to unite the most unsociable matter, he has concluded with lines, of which I think not myself obliged to tell the meaning.    From Wordnik.com.  [Lives of the Poets, Volume 1] Reference

She did not recognize a subtle cruelty in her system of universal fascination, but her vanity demanded constant tribute, and she was peculiarly absorbed in the effort to bring to her feet this man of iron, her knight in armor, as she was wont to call him, to control him with her influence, to bend this unmalleable material like the proverbial wax in her hands.    From Wordnik.com.  [The Lost Guidon 1911] Reference

Sam, now Max. Both as pliable as elastic, and as unmalleable. ".    From Wordnik.com.  [Christopher Hibbault, Roadmaker] Reference

“I do believe thee,” said the Sub – Prior, “I do believe that thine is indeed metal unmalleable by force.    From Wordnik.com.  [The Monastery] Reference

"I do believe thee," said the Sub-Prior, "I do believe that thine is indeed metal unmalleable by force.    From Wordnik.com.  [The Monastery] Reference

"In other respects also," says our main authority, "he was impracticable, unmalleable, and as independent and wilful as if he were the heir to a peerage.    From Wordnik.com.  [Thomas Carlyle] Reference