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Word of the Day
Friday, February 24, 2012

Definitions for adamantine

  1. Utterly unyielding or firm in attitude or opinion.
  2. Too hard to cut, break, or pierce.
  3. Like a diamond in luster.

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Citations for adamantine
That will shock some people at the Folger, but Shakespeare is adamantine. Tad Friend, "Compleat Works," The New Yorker, Jan. 9, 2012
…and when she saw the state his clothes were in her resolution to turn his Saturday holiday into captivity at hard labor became adamantine in its firmness. Mark Twain, The Adventures of Tom Sawyer
Origin of adamantine
Related to adamant, adamantine comes from the Greek word adamántinos, a combination of the word adamant and the suffix -ine which means "of or pertaining to."