- صِيْغَةُ جَمْعٍ مُفْرَدُهَا [[uncopyrightable]].
- 1960, W. J. G., H. K. S. [sic], "Copyright" Protection for Uncopyrightables: The Common-Law Doctrines", in University of Pennsylvania Law Review, Vol. 108, No. 5 (Mar., 1960), pp. 699-734
- 1969, P Goldstein, "Federal System Ordering of the Copyright Interest", in Columbia Law Review, pp. 49-92
- [...] are further condemned by Sears and Compco's second principle for their tendency to extend the equivalent of copyright protection to statutory uncopyrightables.
- Normally hyphenated; otherwise considered a spelling/construction error by many.
"Uncopyrightables" is longest word in the English language that does not contain any repeated letters, if plurals are allowed.
"Copyright" Protection for Uncopyrightables: The Common-Law Doctrines W. J. G., H. K. S. University of Pennsylvania Law Review, Vol. 108, No. 5 (Mar., 1960), pp. 699-734 doi:10.2307/3310268 <http://links.jstor.org/sici?sici=0041-9907(196003)108%3A5%3C699%3A%22PFUTC%3E2.0.CO%3B2-Z>