pertinacious
/ˌpəːtɪˈneɪʃəs
/adjective formal
Holding firmly to an opinion or a course of action: he worked with a pertinacious resistance to interruptions...
- 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.
- His enquiries were pertinacious.
- He knew she was only so pertinacious out of her love for him.
Synonyms
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 toes/feet dug in, wilful, refractory, contrary, perverse
British informal bloody-minded
rare indurate
Derivatives
pertinaciously
/ adverb ...- I remember that for years I pertinaciously read comic strips, unable to see what Americans saw in them.
- The Spanish Scholastics remain profoundly admired by Catholics as the great intellects they were - unthinkable if they had pertinaciously taught perverse error.
pertinaciousness
/ nounpertinacity
/ noun ...- In both instances, it's a good advertisement for pertinacity.
- This was returned to Buckingham Palace in 1947, largely through the pertinacity of Queen Mary.
- If, in the face of these facts, somebody still insists that the boundaries of the Sikh religion are blurred, it is sheer pertinacity.
Origin
Early 17th century: from Latin pertinax, pertinac- 'holding fast' + -ous.