increditable

comparative more increditable · superlative most increditable

1. rareIncapable of being believed; not creditable.

   Increditable as it may seem, we suspect the Constitution of irony.

   1860 July 11, "The President, Mr. Vanderbilt, and the Pacific Mails" (editorial), New York Times (retrieved 26 Nov 2011)

   1 more example

   [T]he shopmen . . ., increditable as it may sound, used to demand of us upon our entrance, like banditti, if we came with money or with empty hand.

   1887, Robert Louis Stevenson, chapter 13, in Memories and Portraits

   Synonyms: incredible, unbelievable