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pertinacious

[pur-tn-ey-shuh s] /ˌpɜr tnˈeɪ ʃəs/
adjective
1.
holding tenaciously to a purpose, course of action, or opinion; resolute.
2.
stubborn or obstinate.
3.
extremely or objectionably persistent:
a pertinacious salesman from whom I could not escape.
Origin
1620-1630
1620-30; pertinaci(ty) + -ous
Related forms
pertinaciously, adverb
pertinaciousness, noun
Synonyms
1. persevering. 2. dogged.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for pertinacious
  • By this means he undoubtedly escapes much pertinacious annoyance.
  • Again, he teaches the pertinacious upholders of these things not to judge their opponents.
  • There was something in the moody and dogged silence of this pertinacious companion, that was mysterious and appalling.
British Dictionary definitions for pertinacious

pertinacious

/ˌpɜːtɪˈneɪʃəs/
adjective
1.
doggedly resolute in purpose or belief; unyielding
2.
stubbornly persistent
Derived Forms
pertinaciously, adverb
pertinacity (ˌpɜːtɪˈnæsɪtɪ), pertinaciousness, noun
Word Origin
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
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Word Origin and History for pertinacious
adj.

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

Online Etymology Dictionary, © 2010 Douglas Harper
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