Word.ws English Dictionary

adamantium

Syllables: ada·mant·i·umUK/ˌæ.dəˈmæn.tɪ.əm/

adamantium noun: a fictional metal which is indestructible or nearly so.

Noun

adamantium (uncountable)

  1. (also, attributive) A fictional metal which is indestructible or nearly so.
    • It was a bullet. It was a small slug of adamantium, the toughest and hardest of all metals, crammed to capacity with the terrific explosive feroxite and would burst instantly on any reasonable heavy impact.1941 June, Malcolm Jameson, “Devil's Powder”, in Astounding Science-Fiction, volume 27, number 4, Street & Smith
    • It's imperative that these experiments be concluded with haste! The military must know the potential of this new adamantium at once! Even the President is standing by!1969 July, Roy Thomas, “Betrayal”, in Avengers, volume 1, number 66, Marvel Comics

Synonyms of adamantium

Origin of adamantium

From adamant + -ium (suffix forming humorous- or scientific-sounding fictional substance names).

Words formed from adamantium

Questions about adamantium

What does adamantium mean?
Adamantium means a fictional metal which is indestructible or nearly so.
What part of speech is adamantium?
Adamantium is a noun.
How do you pronounce adamantium?
Adamantium is pronounced /ˌæ.dəˈmæn.tɪ.əm/ (UK).

Words near adamantium in the dictionary

  1. adamantinoma
  2. adamantinomas
  3. adamantinomata
  4. adamantinomatous
  5. adamantite
  6. adamantium
  7. adamantive
  8. adamantize
  9. adamantized
  10. adamantizes
  11. adamantizing

Source and license

Adapted from Wiktionary: adamantium (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “adamantium.” Word.ws, https://word.ws/adamantium. Based on Wiktionary, CC BY-SA 4.0.