The wiktionary entry is woefully inadequate, consisting of only three synonyms and leaving it at that. The word is quite relevant to philosophy and religious thought and explorations of the meaning of the concept that the word rerpesents may warrant an article unto itself.
Try merging it with the Doubt article, and expand on notions of 'dubious' from there. Drakonicon 15:32, 13 July 2006 (UTC)