adamantとは 意味・読み方・使い方

別の表記

• adamaunt (obsolete)

語源

From 中期英語 adamant, adamaunt, from Latin adamantem, accusative singular form of adamās (“hard as steel”), from Ancient Greek ἀδάμας (adámas, “invincible”), from ἀ- (a-, “not”) + δαμάζω (damázō, “to tame”) or of Semitic origin. Doublet of diamond.

発音

• IPA: /ˈæd.ə.mənt/, /ˈæd.ə.mænt/
• (Indic) IPA: /ˈæ.ɖə.mᵻnʈ/, (spelling pronunciation) /ˈə.ɖə.mᵻnʈ/

形容詞

adamant (comparative more adamant, superlative most adamant)

1. (said of people and their conviction) Firm; unshakeable; unyielding; determined.
   • 2002, Charles Moncrief, Wildcatters: The True Story of how Conspiracy, Greed and the IRS ..., page 195:

     Broiles and Kirkley were adamant about getting out of the lawsuit, but Mike and Dee were equally adamant about not wanting to sign a letter of apology

   • 2006, Cara E. C. Vermaak, Confessions of the Dyslexic Virgin, page 275:

     Johan is determined to play the field and adamant about never committing.

   • 2010, Deeanne Gist, Maid to Match, page 94:

     What good would such foolishness do a mountain man? But Pa had been adamant. Just as he'd been adamant about their reading, writing, numbers, geography, and languages. Just as he'd been adamant about using proper grammar

   • 2025 April 8, Whitney Eulich, Andrea Salcedo, “For Panamanians, the canal is theirs. But who profits from it?”, in The Christian Science Monitor:

     Most Panamanians are adamant that the canal, completed in 1914, will not return to U.S. control.

2. (of an object) Very difficult to break, pierce, or cut.
   • 1956, Arthur C. Clarke, The City and the Stars, page 34:

     Unprotected matter, however adamant, would have been ground to dust ages ago.

同意語

• See also Thesaurus:obstinate

名詞

adamant (plural adamants)

1. An unspecified mineral or rock of virtually impenetrable hardness.
   • 1582, Robert Parsons, chapter VIII, in The First Booke of the Christian Exercise, Appertayning to Resolution‎, G. Flinton:

     This then is and alwayes hath ben the fashion of Worldlinges, & reprobate persons, to harden their hartes as an adamant stone, against anye thinge that shalbe tolde the for amendement of their lives, and for the savinge of their soules.

   • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Ezekiel 3:9:

     As an adamant harder than flint have I made thy forehead […]

   • 1831, L[etitia] E[lizabeth] L[andon], chapter XV, in Romance and Reality. […], volume I, London: Henry Colburn and Richard Bentley, […], →OCLC, page 162:

     But this was a finale she ever avoided: an offer, like the rock of adamant in Sinbad's voyages, finishes the attraction by destroying the vessel; […]

   1. (historical or poetic) In later use: diamond.
   2. (poetic, archaic) In later use: a lodestone.
      • c. 1595–1596 (date written), William Shakespeare, “A Midsommer Nights Dreame”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, (please specify the act number in uppercase Roman numerals, and the scene number in lowercase Roman numerals):

        You draw me, you hard-hearted adamant: / But yet you draw not iron, for all my heart / Is true as steel. Leave you your power to draw, / And I shall have no power to follow you.

   3. (obsolete except historical) A substance that neutralizes lodestones.
      • 1657 [1608], Jean de Renou, translated by Richard Tomlinson, A Medicinal Dispensatory […], page 418:

        An Adamant hinders the attractive vertue, as also Garlick rubbed on the Magnet; for its attractive faculty is not so valid, but it may be easily deluded, obscured, and superated […]

      • 2012, Daryn Lehoux, What Did the Romans Knows? An Inquiry into Science and Worldmaking, →ISBN, page 139:

        But we know from book 37 of the Natural History that adamant works on magnets in exactly the same way that garlic does: robbing them of their power to attract.

2. (figurative)
   1. Chiefly in of adamant: an embodiment of impenetrable hardness; the quality of not being easily destroyed or overcome; impenetrableness, imperviousness, impregnableness; also, of a person: the quality of not being easily affected emotionally; impassiveness, unmovableness.

      Synonyms: impassivity, impenetrability, impregnability, unmovability

      • 1907 April, E[dward] M[organ] Forster, chapter XV, in The Longest Journey, Edinburgh; London: William Blackwood and Sons, →OCLC:

        Actual life might seem to her so real that she could not detect the union of shadow and adamant that men call poetry.

   2. (obsolete) A person or thing having the quality of attracting or drawing; a lodestone, a magnet.

参考

• (imaginary desirably hard material): unobtainium

派生語

Further reading

• “adamant”, in OneLook Dictionary Search.
• “adamant”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

語源

Learned borrowing from Latin adamantem, accusative of adamās, from Ancient Greek ἀδάμας (adámas). Doublet of dyamaunt and adamas.

発音

• IPA: /adəˈmant/, /adəˈmau̯nt/, /ˈadəmant/, /ˈadəmau̯nt/

名詞

adamant (plural adamants)

1. adamant, adamantine (valuable gemstone)
2. An invulnerable or indomitable object
3. A natural magnet; magnetite.

関連する語

• adamantine

派生した語

• English: adamant
• Scots: adamant (obsolete)

Further reading

• “adama(u)nt, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 11 May 2018.