Posted on 18th July 2012 by melyn Falsuri is the Cornish word for insincerity Yes, insincerity in Cornish is falsuri Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related Post navigationPrevious post: Solem is the Cornish word for solemnNext post: Molgh is the Cornish word for thrush