1
as in persistent
continuing despite difficulties, opposition, or discouragement
a pertinacious little boy who was determined to catch and collect reptiles
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in stubborn
sticking to an opinion, purpose, or course of action in spite of reason, arguments, or persuasion
a pertinacious salesman who would simply not take "No!" for an answer
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of pertinacious
But Kerry, the pertinacious diplomat and former Massachusetts senator, sees too much to do — and insisted in an interview with The Boston Globe there is too much to possibly achieve — to quit just yet.
—
Jess Bidgood, BostonGlobe.com, 26 Feb. 2023
Barletta’s pertinacious reputation on immigration, from his time as mayor of Hazleton to his four terms in the U.S. House, is at center stage this year in his campaign to defeat Sen. Bob Casey’s bid for a third term.
—Chris Brennan, Philly.com, 25 June 2018
Jess Bidgood, BostonGlobe.com, 26 Feb. 2023
Barletta’s pertinacious reputation on immigration, from his time as mayor of Hazleton to his four terms in the U.S. House, is at center stage this year in his campaign to defeat Sen. Bob Casey’s bid for a third term.
—Chris Brennan, Philly.com, 25 June 2018
Recent Examples of Synonyms for pertinacious
Adjective
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Many prominent men across sports, music, business and politics have opened up about their mental health struggles, helping to chip away at the persistent stigma that discourages men from seeking help.—
Sreedhar Potarazu,
Baltimore Sun,
6 July 2025
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This suggested that the persistent activity of PKMζ is required to maintain a memory.—
Ajdina Halilovic,
Wired News,
6 July 2025
Adjective
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One of the people that is most stubborn in their support of these spendy projects is Senator Todd Young, a Republican from Indiana.—
Roger Valdez,
Forbes.com,
1 July 2025
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For indoor brick, keep it simple by trying a slightly damp brush to sweep away stubborn dirt.—
Patricia Shannon,
Southern Living,
29 June 2025
Adjective
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But these cerebral dispatches realize their audience often experiences the work communally and tends to enjoy it most when accompanied by flowing synths and insistent drums.—
Craig Jenkins,
Vulture,
27 June 2025
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An insistent tabby cat has left internet users in stitches after getting caught repeatedly waking up a woman by yelling outside her window, despite not being her pet.—
Maria Azzurra Volpe,
MSNBC Newsweek,
18 June 2025
Adjective
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Among the holdouts are members of the SALT Caucus, who have been adamant that any deal from the Senate that does not match the one that passed the House is dead on arrival.—
Rachel Schilke,
The Washington Examiner,
27 June 2025
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President Donald Trump has been adamant his tariffs will bring factory jobs back to American shores.—
Preston Fore,
Fortune,
27 June 2025
Adjective
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While many Iranians have left Tehran amid ongoing turmoil, those who remain are resolute in their commitment to stay and support one another.—
Amir Daftari,
MSNBC Newsweek,
20 June 2025
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The older priest is resolute, determined to once more do battle with the Devil.—
Frank Scheck,
HollywoodReporter,
5 June 2025
Adjective
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But Rosary’s goals and its place in the community have remained steadfast, school leadership says.—
Molly Morrow,
Chicago Tribune,
7 July 2025
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Accessibility and Sustainability Environmental care is one of Bitter End’s most steadfast values.—
Lydia Price,
Travel + Leisure,
6 July 2025
Adjective
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All that being said, the controls can still feel frustratingly obstinate at times, and get in the way of the overall experience.—
Hayes Madsen,
Rolling Stone,
23 June 2025
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More: McConnell called Trump 'despicable' and a 'narcissist,' cried after Capitol riot, new book says Now out of GOP leadership, McConnell has emerged as the most obstinate member of a loose cohort of Republican senators willing to criticize the president’s policies and nominees.—
Riley Beggin,
USA Today,
6 Jan. 2021
Cite this Entry
“Pertinacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/pertinacious. Accessed 18 Jul. 2025.
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