pertinacious — holding firmly to an opinion or a course of action; stubbornly persistent
Part of speech: ADJECTIVE
Definition: holding firmly to an opinion or a course of action; stubbornly persistent
Pronunciation (IPA): /pərˈtɪneɪʃəs/
Example Sentences
- My grandmother is so pertinacious about her secret recipe that she won't even tell it to Gordon Ramsay.
- The pertinacious student asked the same question fifteen times until the professor finally surrendered.
- His pertinacious dedication to learning English eventually paid off when he aced the CSAT.
pertinacious
ADJECTIVE[/pərˈtɪneɪʃəs/]
holding firmly to an opinion or a course of action; stubbornly persistent

The pertinacious lawyer kept pressing the witness despite repeated warnings from the judge.

Stay tenacious even when the cliff feels spacious!
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🎤Pronunciation
🌳Etymology
Origin
From Latin 'pertinax' meaning 'holding fast' or 'stubborn', derived from 'per-' (through) and 'tenax' (holding, grasping), related to the verb 'tenere' meaning 'to hold'. The suffix '-ious' converts it to an adjective.
Breakdown
per- (through) + tenax (holding fast) + -ious (adjective suffix) = pertinacious
🎵Rhyme
🔗Collocations
📝Examples
“My grandmother is so pertinacious about her secret recipe that she won't even tell it to Gordon Ramsay.”
“The pertinacious student asked the same question fifteen times until the professor finally surrendered.”
“His pertinacious dedication to learning English eventually paid off when he aced the CSAT.”
“The pertinacious detective refused to close the case until every lead was investigated.”
📚Related Words
Synonyms
Antonyms
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