per·ti·na·cious
(pûr′tn-ā′shəs)adj.
1. Holding tenaciously or stubbornly to a purpose, opinion, or course of action: a pertinacious heretic; pertinacious defiance.
2. Extremely persistent or unyielding: pertinacious researchers.
[From Latin pertināx, pertināc- : per-, per- + tenāx, tenacious (from tenēre, to hold; see ten- in Indo-European roots).]
per′ti·na′cious·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
pertinacious
(ˌpɜːtɪˈneɪʃəs)adj
1. doggedly resolute in purpose or belief; unyielding
2. stubbornly persistent
[C17: from Latin pertināx, from per- (intensive) + tenāx clinging, from tenēre to hold]
ˌpertiˈnaciously adv
pertinacity, ˌpertiˈnaciousness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
per•ti•na•cious
(ˌpɜr tnˈeɪ ʃəs)adj.
1. holding tenaciously to a purpose, course of action, or opinion; resolute.
2. extremely or stubbornly persistent.
[1620–30; < Latin pertināx, s. pertināc-]
per`ti•na′cious•ly, adv.
per`ti•nac′i•ty (-ˈæs ɪ ti) per`ti•na′cious•ness, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
| Adj. | 1. |  pertinacious - stubbornly unyielding; "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot; "men tenacious of opinion"obstinate, stubborn, unregenerate - tenaciously unwilling or marked by tenacious unwillingness to yield |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
pertinacious
adjective1. Tenaciously unwilling to yield:
2. Difficult to alleviate or cure:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
pertinacious
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995