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Word of the Day Tuesday, June 9, 2026

pertinacious

/pərˈtɪnəsɪəs/ adjective · British & US
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What does pertinacious mean?

adjective

Continuing to argue or say something in a stubborn and persistent way; stubbornly persistent.

Example

"The lawyer was pertinacious in his defense of his client, refusing to back down despite the mounting evidence against them."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for pertinacious

Antonyms of pertinacious

Rhymes with pertinacious

Etymologically related