captious

adjective2

1. •
   Having a disposition to find fault unreasonably or to raise petty objections; cavilling, nitpicky.

   • But Peter Petrovich did not accept this retort. On the contrary, he became all the more captious and irritable, as though he were just hitting his stride. — 1968
2. •
   (no longer used) That captures; especially, (of an argument, words etc.) designed to capture or entrap in misleading arguments; sophistical.

   • […]I know I loue in vaine, striue against hope : Yet in this captious, and intemible Siue I still poure in the waters of my loue And lacke not to loose still[…] — 1605