pansophical

Etymology
See.

Adjective

 * 1) All-wise; claiming universal knowledge.
 * 2) * 1847-1886, (editor), notes in The Diary and Correspondence of Dr. John Worthington
 * His indefatigable adversary, who is the perfect model of an agile controversialist, had attacked him as a magniloquent Thraso, on account of his Pansophical promises.