One of the mysteries of the English language finally explained.
Holding firmly to an opinion or a course of action.‘he worked with a pertinacious resistance to interruptions’
determined, tenacious, persistent, persevering, assiduous, purposeful, resolute, dogged, indefatigable, insistent, single-minded, unrelenting, relentless, implacable, uncompromising, unyielding, tireless, unshakeable, importunate, stubborn, stubborn as a mule, mulish, obstinate, obdurate, strong-willed, headstrong, inflexible, unbending, intransigent, intractable, pig-headed, bull-headed, stiff-necked, with one's feet dug in, with one's toes dug in, wilful, refractory, contrary, perverseView synonyms
- ‘His enquiries were pertinacious.’
- ‘He was a pertinacious controversialist, but in any personal discussion his humorous twinkle was disarming.’
- ‘Well, I shall now offer a balanced view based on the facts before me: I find your attempts quite perspicacious and pertinacious, and wish you well accordingly.’
- ‘He knew she was only so pertinacious out of her love for him.’
Early 17th century: from Latin pertinax, pertinac- ‘holding fast’ + -ous.
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