unpolishable

unpolishable

(ʌnˈpɒlɪʃəbəl)
adj
1. incapable of being made smooth or shiny
2. incapable of being made refined or civilized
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Shoeshine boys plead for a crack at unpolishable plastic flip-flops while nouveau-fiche kids trawl the streets, hip-hop music pumping out of their ears' tinted windows.
Sight unseen: when curators began creating Vietnam's first international art show since 1962, they hoped their country's new openness to Western business would mean more cultural freedom. Were they ever wrong