Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Made of or resembling adamant.
- adj. Having the hardness or luster of a diamond.
- adj. Unyielding; inflexible: "If there is one dominant trait that emerges from this account, it is adamantine willpower” ( Eugene Linden).
Century Dictionary and Cyclopedia
- Made of adamant; having the qualities of adamant; impenetrable.
- Resembling the diamond in hardness or in luster.
- Corundum, from its hardness or peculiar occasional luster. See corundum.
Wiktionary
- adj. Made of adamant, or having the qualities of adamant; incapable of being broken, dissolved, or penetrated; as, adamantine bonds or chains.
- adj. Like the diamond in hardness or luster.
GNU Webster's 1913
- adj. Made of adamant, or having the qualities of adamant; incapable of being broken, dissolved, or penetrated.
- adj. Like the diamond in hardness or luster.
WordNet 3.0
- adj. having the hardness of a diamond
- adj. impervious to pleas, persuasion, requests, reason
- adj. consisting of or having the hardness of adamant
Examples
“Maybe it's the word adamantine's magnetic lure and”
“AVING contributed to bring into notice the mineral fubftance from the EafUIndiesi which is generally called adamantine fpar, I beg leave to lay before the Royal Society tho following account of its hiftory and introdu£kion.”
Internet Archive: A Journal of natural philosophy, chemistry, and the arts ..
“The word 'adamantine' is connected with the Greek adamas, meaning 'unconquerable.”
“The lustre of this is the true "adamantine," or diamond, brilliancy, and the other and impure divisions of this particular lustre are: _splendent_, when objects are reflected perfectly, but of a lower scale of perfection than the true”
“In that crystal air, instinct with its delicate, dominant implication of things imponderable, the personality of each persisted undisturbed, in a kind of adamantine unconsciousness.”
“Here was stored almost every small article required by humanity, from an inflamed emery cushion to a peppermint Gibraltar -- the latter a kind of adamantine confectionery which, when I reflect upon it, raises in me the wonder that any”
“adamantine" standard, which is absolutely flawless.”
“Even when, later still, the general's eager hand, stretching forth for the dusky flagon (it was sacrilege to sweep away those insignia of age and respectability), managed to capsize the candelabrum and sent the fluid "adamantine" spattering a treasured table-cloth (how quick the dash of the young trooper's hand upon the flame -- and its extinction!), a gentle smile was the sole rebuke, followed by a "Thank you, Mr. Harris.”
“If you shoot Captain America at point blank (careful to get under his adamantine chainmail shirt), the bullet rends regular old, human flesh and bone, and he dies.”
“It was nice, however, to see the iconic moment that Wolverine rises out of the adamantine injection tank and, you know, kicks ass.”
Lists
These user-created lists contain the word ‘adamantine’.
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Weftage
The many textures of touch.
smooth, warty, velvety, sleek, grainy, shaggy, abrasive, scratchy, bumpy, corded, ribbed, roughish and 95 more...
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Geology Words
The descriptive science described.
earth, lithosphere, mineral, convection, heat flow, ore, deep time, fossil, formation, rock, tectonics, extinction and 256 more...
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Ditrochaic Words with the Accent on the First S...
This is my favorite meter for single words. You could call it BUH-duh-buh-duh.
I collect them and cherish them; please add some. Phrases are also accepted if they've, you know, got it.helicopter, stratocaster, watermelon, telecaster, percolator, studebaker, flabbergasted, dramaturgy, carburator, copenhagen, pomegranate, metallurgy and 13 more...
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AnthonyHentschel's list
To whomsoever it may concern:
Not really sure what your site is about but I thought you might be interested in this poem - Carpe Diem - as it contains that word - uliginose.
Sincerely, ... -
Useful fantasy list
scion, chrysalis, adamantine, effulgent, gallimaufry, polliwog, viridian, blunderbuss, aether

seanahan The root word of Wolverines adamantium. Feb 14, 2008
chained_bear "'No: to go to sea a man needs youth, an adamantine health, and the digestion of a hyena.'"
--Patrick O'Brian, The Ionian Mission, 80 Feb 13, 2008