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pertinacious

[ pur-tn-ey-shuhs ]
/ ˌpɜr tnˈeɪ ʃəs /
||
SEE MORE SYNONYMS FOR pertinacious ON THESAURUS.COM

adjective

holding tenaciously to a purpose, course of action, or opinion; resolute.
stubborn or obstinate.
extremely or objectionably persistent: a pertinacious salesman from whom I could not escape.

RELATED WORDS

attentive, determined, dogged, persistent, tenacious, insistent, perverse, stubborn, firm, headstrong, inflexible, obstinate, resolute, unshakable

Nearby words

  1. perth and kinross,
  2. perthes disease,
  3. perthite,
  4. perthitic,
  5. perthshire,
  6. pertinacity,
  7. pertinence,
  8. pertinent,
  9. pertly,
  10. perturb

Origin of pertinacious

First recorded in 1620–30; pertinaci(ty) + -ous
Related formsper·ti·na·cious·ly, adverbper·ti·na·cious·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pertinacious

British Dictionary definitions for pertinacious

pertinacious

/ (ˌpɜːtɪˈneɪʃəs) /

adjective

doggedly resolute in purpose or belief; unyielding
stubbornly persistent
Derived Formspertinaciously, adverbpertinacity (ˌpɜːtɪˈnæsɪtɪ) or pertinaciousness, noun

Word Origin for pertinacious

C17: from Latin pertināx, from per- (intensive) + tenāx clinging, from tenēre to hold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for pertinacious

pertinacious

adj.

1620s, from pertinacy (late 14c.; see pertinacity) + -ous. Related: Pertinaciously.

Online Etymology Dictionary, © 2010 Douglas Harper