[ pur-tn-as-i-tee ]
See synonyms for pertinacity on
  1. the quality of being pertinacious; persistence.

Origin of pertinacity

First recorded in 1495–1505; from Late Latin pertinācitās, for Latin pertinācia “stubbornness, perseverance” (from obsolete pertinacy), equivalent to pertināci- (stem of pertināx) “steadfast, stubborn” + -tās noun suffix (see -ty2). See per-, tenacity

synonym study For pertinacity

Other words for pertinacity

Words Nearby pertinacity Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use pertinacity in a sentence

  • Marlborough had formerly made himself conspicuous by the keenness and pertinacity with which he had attacked the Dutch.

  • And he kept it up all through the long vacation with a pertinacity I should never have given him credit for.

    The Romance of His Life | Mary Cholmondeley
  • The former still adhered, with fixed pertinacity of purpose, to the matrimonial arrangement which he had made with his son.

    The Kellys and the O'Kellys | Anthony Trollope
  • She, it may be remembered, sought for the precious remains with true pertinacity till she found them.

  • Their courage and pertinacity are unconquerable, and are often sublimed into the most inconceivable rage and fury.