1837     June 527  				The broad ladder laid against the wall, rickety and somewhat rungless though it be,..is more to our own taste.
1920    A. E. Sheffield  iv. 95  				The hoarder of broken-nosed teapots or rungless chairs.
2000     		(Nexis)	 9 Feb.  				The struggle to fight your way up the corporate ladder (which at times feels greased and rungless) can make your present job seem less than appealing.