superhard

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adjective

Having a very high hardness.

“a superhard missile silo”

Scrabble 15
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Meanings

adjectivesuperhard (comparative more superhard, superlative most superhard)

comparative more superhard · superlative most superhard

  1. Having a very high hardness.
  2. Highly strengthened against attack.

    a superhard missile silo

  3. not comparablechemistryHaving a hardness between that of boron nitride and that of diamond.
nounsuperhard (plural superhards)

plural superhards

  1. hobbiesA tyre whose compound is harder than a normal hard tyre.

Origin

From super- + hard.

Full word history & related roots →
Cite this entry
APA

superhard. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/superhard

MLA

“superhard.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/superhard. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “superhard,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/superhard.

Source: superhard on Wiktionary, CC BY-SA 4.0.