'Pertinacity' definitions:

Definition of 'pertinacity'

From: WordNet
noun
Persistent determination [syn: doggedness, perseverance, persistence, persistency, tenacity, tenaciousness, pertinacity]

Definition of 'Pertinacity'

From: GCIDE
  • Pertinacity \Per`ti*nac"i*ty\, n. [Cf. F. pertinacit['e].] The quality or state of being pertinacious; obstinacy; perseverance; persistency. --Macaulay. [1913 Webster]
  • Syn: See Obstinacy. [1913 Webster]