[ pur-vi-key-shuh s ]
/ ˌpɜr vɪˈkeɪ ʃəs /


extremely willful; obstinate; stubborn.

Origin of pervicacious

1625–35; < Latin pervicāc-, stem of pervicāx stubborn, willful (per- per- + vic-, variant stem of vincere to conquer (see victor) + -āx adj. suffix denoting tendency or ability) + -ious
Related formsper·vi·ca·cious·ly, adverbper·vi·ca·cious·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019