Posted on 2nd November 2013 by melyn Diambos is the Cornish word for unaccountable Yes, unaccountable in Cornish is diambos Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Kowrvalow is the Cornish word for hibiscusNext post: Grevus is the Cornish word for distressing