pervicacious

• May they be efficacious upon the mind of one of the most pervicacious young creatures that ever was heard of! —  Clarissa Harlowe; or the history of a young lady — Volume 1
• -- Why should you be so pervicacious now, Pug? —  The works of John Dryden, $c now first collected in eighteen volumes. $p Volume 06
• Of late, I am told by shopkeepers, the tin box with the pervicacious cover is becoming popular; but I remain true to my sponge in a bottle: for, unlike the leopard, I am able to change my spots. —  The Perfect Gentleman
• It happened a little while thereafter that he made a most heavy regret thereof to his father, attributing the causes of his bad success in pacificatory enterprises to the perversity, stubbornness, froward, cross, and backward inclinations of the people of his time; roundly, boldly, and irreverently upbraiding, that if but a score of years before the world had been so wayward, obstinate, pervicacious, implacable, and out of all square, frame, and order as it was then, his father had never attained to and acquired the honour and title of Strife-appeaser so irrefragably, inviolably, and irrevocably as he had done. —  Gargantua and Pantagruel, Illustrated, Book 3

Allen's Synonyms and Antonyms