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pertinacious
[ pur-tn-ey-shuhs ]
/ ˌpɜr tnˈeɪ ʃəs /
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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.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Origin of pertinacious
First recorded in 1620–30; pertinaci(ty) + -ous
OTHER WORDS FROM pertinacious
per·ti·na·cious·ly, adverbper·ti·na·cious·ness, nounWords nearby pertinacious
Perth Amboy, Perth and Kinross, Perthes disease, perthite, Perthshire, pertinacious, pertinacity, pertinence, pertinent, per tubam, perturb
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use pertinacious in a sentence
British Dictionary definitions for pertinacious
pertinacious
/ (ˌpɜːtɪˈneɪʃəs) /
adjective
doggedly resolute in purpose or belief; unyielding
stubbornly persistent
Derived forms of pertinacious
pertinaciously, adverbpertinacity (ˌpɜːtɪˈnæsɪtɪ) or pertinaciousness, nounWord Origin for pertinacious
C17: from Latin pertināx, from per- (intensive) + tenāx clinging, from tenēre to hold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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