Meaning & use
pertinacity
Stubborn and persistent determination in holding to an opinion, purpose, or course of action.
See it in a sentence
Her pertinacity in pursuing the case eventually forced the company to settle out of court.
Critics saw his pertinacity as admirable resolve, while others simply called it stubbornness.
A note on using this word
Pertinacity is a formal, somewhat old-fashioned word; persistence or tenacity would sound more natural in everyday conversation.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
irresolution
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