Dictionary
A modern dictionary of Catholic terms, both common and obscure. Find accurate definitions of words and phrases.
ARGUMENT AD IGNORANTIAM
An argument directed at a person's factual ignorance or his inability either to prove the facts he presents or disprove those presented against him.
All items in this dictionary are from Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.
Recent Catholic Commentary
The Rise and Fall of the (American?) Church 8 hours ago
The Ideal of Pope Francis: the Servant Church 16 hours ago
The Mystery of the Spirit May 21
Top Catholic News
Most Important Stories of the Last 30 Days







