Quick Definition: Proceeding by inquiry
From Rational Wiki:
“Zetetic” is an obscure English word coming from Greek through Latin. As an adjective it means “proceeding by inquiry; investigating”, and, thus, when used as a noun – “inquirer”. It has been used as a something-like-synonym of “skeptic” at least twice.
The original name of the Skeptical Inquirer magazine was The Zetetic. After Marcello Truzzi‘s falling out with CSICOP, he appropriated the term “zeteticism” for his brand of “more open minded” skepticism. He started another journal, the Zetetic Scholar.