- 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.
Origin of pertinacious
SynonymsSee more synonyms for on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Related Wordsattentive, determined, dogged, persistent, tenacious, insistent, perverse, stubborn, firm, headstrong, inflexible, obstinate, resolute, unshakable
Examples from the Web for pertinacious
And it was the presence of that pertinacious ship-chandler which had started them.'Twixt Land & Sea
Behind these was the agent, punctual and pertinacious, who had come for the rent.The Paliser case
And he escaped from pertinacious Mr. Dawson with some alacrity.Half a Hero
Again they laughed at the child's pertinacious fancy for a night-ramble.Short Story Writing
Charles Raymond Barrett
"They are not the only pertinacious ones," the priest replied.The Art of Disappearing
John Talbot Smith
- doggedly resolute in purpose or belief; unyielding
- stubbornly persistent
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
Online Etymology Dictionary, © 2010 Douglas Harper